{"id":59765,"date":"2026-01-14T13:05:36","date_gmt":"2026-01-14T05:05:36","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/59765.html"},"modified":"2026-01-14T13:05:36","modified_gmt":"2026-01-14T05:05:36","slug":"%e4%b8%80%e6%96%87%e8%af%bb%e6%87%82-lambda","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/59765.html","title":{"rendered":"\u4e00\u6587\u8bfb\u61c2 Lambda"},"content":{"rendered":"<p>Lambda\u7684\u8bbe\u8ba1\u662f\u4e3a\u4e86\u4ee3\u7801\u7684\u4f18\u96c5&#xff0c;\u8981\u60f3\u7406\u89e3Lambda&#xff0c;\u5f97\u4ece\u5f88\u5f00\u59cb\u8bb2\u8d77\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u53e5\u8bdd\u7406\u89e3\u90e8\u5206&#xff0c;\u5982\u679c\u4f60\u770b\u5230\u8fd9\u4e00\u53e5\u8bdd\u540e\u4f1a\u4e86&#xff0c;\u90a3\u540e\u9762\u90fd\u957f\u7bc7\u5927\u8bba\u5c31\u4e0d\u7528\u770b\u4e86\u3002<\/p>\n<p>lambda\u4f5c\u7528\u662f\u51cf\u5c11\u4e00\u6b21\u6027\u5b9e\u73b0\u63a5\u53e3\/\u533f\u540d\u5185\u90e8\u7c7b\u7684\u5197\u4f59&#xff0c;\u662f\u5bf9\u533f\u540d\u5185\u90e8\u7c7b\u7684\u7b80\u5316&#xff0c;\u672c\u8d28\u662f\u4e00\u4e2a\u201c\u53ef\u4f20\u9012\u7684\u884c\u4e3a&#xff08;\u51fd\u6570&#xff09;\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260114050534-6967241e92fbb.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>1 \u4ece\u63a5\u53e3\u5f00\u59cb\u7684\u6700\u4f73\u5b9e\u8df5<\/h2>\n<p>\u6211\u4eec\u90fd\u77e5\u9053&#xff0c;\u804c\u8d23\u5212\u5206\u6838\u5fc3\u601d\u60f3\u662f&#xff1a;\u4efb\u52a1\u903b\u8f91\u548c\u6267\u884c\u903b\u8f91\u5f7b\u5e95\u89e3\u8026&#xff0c;\u63a5\u53e3\u5b9a\u4e49\u80fd\u529b&#xff0c;\u5b9e\u73b0\u7c7b\u505a\u4e1a\u52a1&#xff0c;\u6267\u884c\u5668\u505a\u6d41\u7a0b\u63a7\u5236&#xff0c;\u88c5\u9970\u5668\u505a\u4e1a\u52a1\u589e\u5f3a\u589e\u5f3a\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u521a\u5f00\u59cb\u4f7f\u7528\u63a5\u53e3\u65f6&#xff0c;\u53ef\u80fd\u4f1a\u8fd9\u6837<\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e00&#xff1a;\u4efb\u52a1\u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e8c&#xff1a;\u5b9e\u73b0Task\u7684\u7c7b<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyTask<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9e\u73b0\u7c7b\u7684\u65b9\u6cd5<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Test<\/span> test <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n         task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u4e0d\u77e5\u9053\u4f60\u6709\u6ca1\u6709\u610f\u8bc6\u5230\u4e00\u4ef6\u4e8b&#xff1f;\u8fd9\u6bb5\u4ee3\u7801&#xff0c;\u4e0d\u4f18\u96c5&#xff0c;\u56e0\u4e3a&#xff1a;\n<ul>\n<li>\u6ca1\u6709\u590d\u7528\u6027<\/li>\n<li>\u65e0\u6cd5\u7edf\u4e00\u6dfb\u52a0\u6267\u884c\u524d\u540e\u7684\u903b\u8f91<\/li>\n<li>\u63a7\u5236\u6743\u548c\u4efb\u52a1\u903b\u8f91\u6df7\u6742\u5728\u4e00\u8d77<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u53ef\u80fd\u4f60\u6682\u65f6\u770b\u4e0d\u51fa\u6765&#xff1f;\u90a3\u770b\u770b\u7ecf\u8fc7\u6ce8\u91ca\u540e\u7684\u7c7b\u5427<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyTask<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9e\u73b0\u7c7b\u7684\u65b9\u6cd5<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">Test<\/span> test <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/\u7b2c\u4e00\u6b21\u8c03\u7528&#xff0c;\u6211\u5f97\u628a\u8c03\u7528\u524d\u540e\u903b\u8f91\u76f4\u63a5\u52a0\u5728\u8fd9\u91cc<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>&#xff1b;  <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u540e\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5176\u4ed6\u4ee3\u7801<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u7b2c\u4e8c\u6b21\u8c03\u7528&#xff0c;\u53c8\u5f97\u91cd\u590d\u524d\u540e\u903b\u8f91&#xff0c;\u8fd9\u5c31\u662f\u6ca1\u6709\u590d\u7528\u6027<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ntask<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u540e\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <\/p>\n<p>        <span class=\"token comment\">\/\/ \u6bcf\u6b21\u8c03\u7528task.execute()\u90fd\u9700\u8981\u6dfb\u52a0\u6267\u884c\u524d\u7684\u903b\u8f91\u548c\u6267\u884c\u540e\u7684\u903b\u8f91&#xff0c;\u56e0\u6b64&#xff0c;main\u65b9\u6cd5\u5373\u5f53\u5988&#xff0c;\u53c8\u5f53\u7238&#xff0c;\u4e00\u8fb9\u63a7\u5236\u4efb\u52a1\u4ec0\u4e48\u65f6\u5019\u6267\u884c&#xff0c;\u4e00\u8fb9\u7f16\u5199\u7740\u4efb\u52a1\u903b\u8f91<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u76f8\u4fe1\u8fd9\u4e0b\u4f60\u8be5\u660e\u767d\u4ee3\u7801\u4e3a\u4ec0\u4e48\u4e0d\u4f18\u96c5\u4e86&#xff0c;\u90a3\u5982\u4f55\u89e3\u51b3\u8fd9\u4e2a\u4e0d\u4f18\u96c5\u5462&#xff1f;\u4f60\u53ef\u80fd\u4f1a\u60f3&#xff0c;\u53ef\u4ee5\u8fd9\u6837\u5199<\/li>\n<\/ul>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyTask<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9e\u73b0\u7c7b\u7684\u65b9\u6cd5<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>&#xff1b;  <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u540e\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Test<\/span> test <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ntask<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5176\u4ed6\u4ee3\u7801<\/span><br \/>\ntask<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u4e4d\u4e00\u770b&#xff0c;\u662f\u5c11\u4e86\u5f88\u591a\u4ee3\u7801&#xff0c;\u4f46\u597d\u50cf\u8fd8\u6709\u4e9b\u95ee\u9898&#xff1f;\u5982\u679c\u6211\u6709\u4e24\u79cd\u4efb\u52a1\u903b\u8f91\u5462&#xff1f;<\/li>\n<\/ul>\n<p>   <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f911 <\/span><br \/>\n   <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>&#xff1b;  <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u540e\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>   <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f912<\/span><br \/>\n   <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>&#xff1b;  <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u5f88\u663e\u7136&#xff0c;\u8fd9\u6837\u5199\u6839\u672c\u6ca1\u6709\u89e3\u51b3\u95ee\u9898&#xff01;\u751a\u81f3\u65e0\u6cd5\u5b9e\u73b0\u4e24\u79cd\u4efb\u52a1\u903b\u8f91\u3002\u66f4\u597d\u7684\u89e3\u51b3\u65b9\u6cd5\u662f\u4e0b\u9762\u8fd9\u6837<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e00&#xff1a;\u4efb\u52a1\u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/ \u6587\u4ef6\u4e8c&#xff1a;\u5b9e\u73b0\u4e86\u8fd9\u4e2a\u63a5\u53e3\u7684\u7c7b<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyTask<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Test<\/span> test <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u73b0\u5728\u5c31\u53ef\u4ee5\u8c03\u7528\u4efb\u610f\u6b21\u6570\u4e86<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5176\u4ed6\u4ee3\u7801<\/span><br \/>\n        <span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span>test<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Task<\/span> task<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>&#xff1b;  <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u540e\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">runTask1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Task<\/span> task<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>&#xff1b;  <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5982\u679c\u4f60\u8bfb\u8fc7\u8bbe\u8ba1\u6a21\u5f0f&#xff0c;\u5e94\u8be5\u4f1a\u611f\u89c9\u5230 runTask&#xff0c;runTask1\u662f\u624b\u52a8\u5b9e\u73b0\u88c5\u9970\u5668&#xff0c;\u4e14\u53ea\u50cf\u4e2a\u589e\u5f3a\u884c\u4e3a&#xff0c;\u771f\u6b63\u7684\u88c5\u9970\u5668\u4e0d\u5e94\u8be5\u8fd9\u4e48\u5199\u3002\u672c\u6587\u53ea\u662f\u4e3a\u4e86\u7406\u89e3Lambda&#xff0c;\u800c\u5982\u6b64\u8bbe\u8ba1\u6848\u4f8b<\/span><\/p>\n<ul>\n<li>\u5c31\u5982\u6587\u7ae0\u4e00\u5f00\u59cb\u8bf4\u7684\u4e00\u6837&#xff1a;**\u4efb\u52a1\u903b\u8f91\u548c\u6267\u884c\u903b\u8f91\u5f7b\u5e95\u89e3\u8026&#xff0c;\u63a5\u53e3\u5b9a\u4e49\u80fd\u529b&#xff0c;\u5b9e\u73b0\u7c7b\u505a\u4e1a\u52a1&#xff0c;\u6267\u884c\u5668\u505a\u6d41\u7a0b\u63a7\u5236&#xff0c;\u88c5\u9970\u5668\u505a\u4e1a\u52a1\u589e\u5f3a\u589e\u5f3a\u3002**\u8fd9\u6bb5\u4ee3\u7801&#xff0c;\u5728\u5c0f\u7684\u5730\u65b9\u5b8c\u7f8e\u4e86&#xff0c;\u4f46\u5982\u679c\u6211\u4eec\u5c06\u76ee\u5149\u653e\u5927\u5230\u7c7b\u4e0a\u5462&#xff1f;\u5c31\u4f1a\u6ce8\u610f\u5230 class MyTask implements Task\u3002\n<ul>\n<li>MyTask \u540c\u65f6\u627f\u62c5\u4e86\u4e1a\u52a1\u903b\u8f91\u548c\u7a0b\u5e8f\u63a7\u5236&#xff08;main \u65b9\u6cd5&#xff09;&#xff0c;\u5373\u5b83\u65e2\u662f\u4e1a\u52a1\u7c7b&#xff0c;\u4e5f\u662f\u6267\u884c\u5668\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u66f4\u597d\u7684\u65b9\u6cd5\u662f&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e00&#xff1a;\u4efb\u52a1\u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e8c&#xff1a;\u4e1a\u52a1\u5b9e\u73b0\u7c7b&#xff0c;\u53ea\u5173\u6ce8\u8fd9\u4e2a\u4e1a\u52a1\u662f\u600e\u4e48\u6267\u884c\u7684<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyTask<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e09&#xff1a;\u6267\u884c\u5668\u7c7b&#xff0c;\u53ea\u505a\u6d41\u7a0b\u63a7\u5236<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TaskExecutor<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Task<\/span> task<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u540e\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u56db&#xff1a;\u7a0b\u5e8f\u5165\u53e3&#xff0c;\u53ea\u8d1f\u8d23\u8c03\u7528<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Main<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Task<\/span> myTask <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">MyTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">TaskExecutor<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span>myTask<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">TaskExecutor<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span>myTask<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53ef\u4ee5\u4efb\u610f\u8c03\u7528<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u73b0\u5728&#xff0c;\u8fd9\u6bb5\u4ee3\u7801\u5f88\u5b8c\u7f8e\u7684\u3002\u4f46\u6709\u8db3\u8db3\u56db\u4e2a\u6587\u4ef6&#xff01;\u5982\u679c\u6709YourTask\u4e1a\u52a1&#xff0c;\u90a3\u8fd8\u4f1a\u591a\u51fa\u4e00\u4e2a\u7c7b\u2026\u2026\u6216\u8005&#xff0c;\u6709\u7684\u4e8b\u60c5\u53ea\u9700\u8981\u6267\u884c\u4e00\u6b21&#xff0c;\u7136\u540e\u5c31\u5b8c\u5168\u4e0d\u7528\u4e86\u3002\u8fd9\u4e9b\u573a\u666f&#xff0c;\u8981\u600e\u4e48\u89e3\u51b3&#xff1f;<\/li>\n<\/ul>\n<h3>1.1 \u5982\u4f55\u9762\u5bf9\u4e34\u65f6\u4efb\u52a1&#xff1f;<\/h3>\n<p>\u7b54\u6848&#xff1a;\u4f7f\u7528\u5185\u90e8\u533f\u540d\u7c7b<\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e00&#xff1a;\u4efb\u52a1\u63a5\u53e3<\/span><br \/>\n<span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e8c&#xff1a;\u6267\u884c\u5668\u7c7b&#xff0c;\u53ea\u505a\u6d41\u7a0b\u63a7\u5236<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TaskExecutor<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Task<\/span> task<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u524d\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        task<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4efb\u52a1\u903b\u8f91<\/span><br \/>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6267\u884c\u540e\u7684\u903b\u8f91&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6587\u4ef6\u4e09&#xff1a;\u7a0b\u5e8f\u5165\u53e3&#xff0c;\u53ea\u8d1f\u8d23\u8c03\u7528<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Main<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ \u4f7f\u7528\u533f\u540d\u5185\u90e8\u7c7b\u5b9e\u73b0 Task<\/span><br \/>\n        <span class=\"token class-name\">Task<\/span> myTask <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n            <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">TaskExecutor<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span>myTask<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">TaskExecutor<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">runTask<\/span><span class=\"token punctuation\">(<\/span>myTask<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u53ef\u4ee5\u4efb\u610f\u8c03\u7528<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u901a\u8fc7\u533f\u540d\u5185\u90e8\u7c7b&#xff0c;\u6211\u4eec\u6210\u529f\u5c06MyTask\u7c7b\u53d8\u6210\u4e86\u7a0b\u5e8f\u5165\u53e3\u4e2d\u7684\u51e0\u884c\u4ee3\u7801&#xff0c;\u90a3\u4e48\u8fd9\u4e9b\u548cLambda\u6709\u4ec0\u4e48\u5173\u7cfb\u5462&#xff1f;<\/li>\n<\/ul>\n<h2>2 Lambda<\/h2>\n<p>\u8bf7\u5faa\u5176\u672c&#xff0c;\u6587\u7ae0\u7684\u4e00\u5f00\u59cb\u5c31\u8bf4\u4e86&#xff1a;<\/p>\n<p>Lambda \u4f5c\u7528\u662f&#xff1a;\u51cf\u5c11\u4e00\u6b21\u6027\u5b9e\u73b0\u63a5\u53e3\/\u533f\u540d\u5185\u90e8\u7c7b\u7684\u5197\u4f59&#xff0c;\u662f\u5bf9\u533f\u540d\u5185\u90e8\u7c7b\u7684\u7b80\u5316&#xff0c;\u672c\u8d28\u662f\u4e00\u4e2a\u201c\u53ef\u4f20\u9012\u7684\u884c\u4e3a&#xff08;\u51fd\u6570&#xff09;\u3002<\/p>\n<p>\u662f\u7684&#xff0c;Lambda\u662f\u8bed\u6cd5\u7cd6&#xff0c;\u4e3a\u4e86\u5c06\u4ee3\u7801\u7ee7\u7eed\u7b80\u5316&#xff0c;\u800c\u51fa\u73b0\u7684\u4e1c\u897f\u3002\u4f7f\u7528\u4e86Lambda&#xff0c;\u539f\u672c\u7684\u4ee3\u7801<\/p>\n<p><span class=\"token comment\">\/\/ \u4f7f\u7528\u533f\u540d\u5185\u90e8\u7c7b\u5b9e\u73b0 Task<\/span><br \/>\n<span class=\"token class-name\">Task<\/span> myTask <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u53ef\u4ee5\u53d8\u6210<\/p>\n<p><span class=\"token class-name\">Task<\/span> myTask <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-&gt;<\/span> <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<table>\n<tr>\u540d\u79f0\u4ee3\u7801\u542b\u4e49<\/tr>\n<tbody>\n<tr>\n<td>\u53c2\u6570\u5217\u8868<\/td>\n<td>()<\/td>\n<td>Task.execute() \u6ca1\u6709\u53c2\u6570&#xff0c;\u6240\u4ee5\u7a7a\u62ec\u53f7<\/td>\n<\/tr>\n<tr>\n<td>\u7bad\u5934<\/td>\n<td>-&gt;<\/td>\n<td>\u5206\u9694\u7b26&#xff0c;\u628a\u201c\u53c2\u6570\u201d\u548c\u201c\u65b9\u6cd5\u4f53\u201d\u5206\u5f00<\/td>\n<\/tr>\n<tr>\n<td>\u65b9\u6cd5\u4f53<\/td>\n<td>System.out.println(&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;)<\/td>\n<td>\u4f60\u60f3\u6267\u884c\u7684\u4ee3\u7801\u5757<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2.1 \u5728\u5185\u5b58\u4e2d<\/h3>\n<table>\n<tr>\u540d\u79f0\u4ee3\u7801\u793a\u4f8b \/ \u63cf\u8ff0\u542b\u4e49 \/ \u5185\u5b58\u4f5c\u7528<\/tr>\n<tbody>\n<tr>\n<td>\u5c40\u90e8\u53d8\u91cf\u5f15\u7528<\/td>\n<td>Task myTask &#061; &#8230;<\/td>\n<td>\u6808\u5e27\u4e2d\u7684\u5c40\u90e8\u53d8\u91cf\u8868\u5b58\u653e\u5f15\u7528&#xff0c;\u6307\u5411 Lambda \u5bf9\u8c61\u6216\u7f13\u5b58\u7684\u5355\u4f8b Lambda<\/td>\n<\/tr>\n<tr>\n<td>\u65b9\u6cd5\u4f53<\/td>\n<td>() -&gt; System.out.println(&#034;\u4efb\u52a1\u6267\u884c\u4e86&#xff01;&#034;)<\/td>\n<td>Lambda \u903b\u8f91&#xff0c;\u7f16\u8bd1\u5668\u751f\u6210\u9759\u6001\u65b9\u6cd5\u5b58\u653e\u5728\u65b9\u6cd5\u533a \/ \u5143\u7a7a\u95f4&#xff0c;\u4e0d\u5360\u5806<\/td>\n<\/tr>\n<tr>\n<td>Lambda\u5bf9\u8c61<\/td>\n<td>\u4ec5\u5f53\u6355\u83b7\u5916\u90e8\u53d8\u91cf\u6216\u9700\u8981\u72b6\u6001\u65f6\u5b58\u5728<\/td>\n<td>\u5806\u4e0a\u5bf9\u8c61&#xff0c;\u7528\u6765\u4fdd\u5b58\u6355\u83b7\u7684\u5916\u90e8\u53d8\u91cf\u6216\u72b6\u6001&#xff1b;\u65e0\u72b6\u6001 Lambda JVM \u53ef\u590d\u7528\u6216\u4e0d\u5206\u914d\u5806<\/td>\n<\/tr>\n<tr>\n<td>\u6355\u83b7\u53d8\u91cf<\/td>\n<td>int x &#061; 10; Task t &#061; () -&gt; System.out.println(x);<\/td>\n<td>\u5916\u90e8\u5c40\u90e8\u53d8\u91cf\u503c\u88ab\u590d\u5236\u5230 Lambda \u5bf9\u8c61\u4e2d&#xff08;effectively final&#xff09;&#xff0c;\u5bf9\u8c61\u5b58\u653e\u5806\u6216\u590d\u7528\u7f13\u5b58<\/td>\n<\/tr>\n<tr>\n<td>invokedynamic<\/td>\n<td>\u5b57\u8282\u7801\u8c03\u7528\u6307\u4ee4<\/td>\n<td>\u8fd0\u884c\u671f\u52a8\u6001\u751f\u6210 Lambda \u5b9e\u73b0&#xff0c;\u7ed1\u5b9a\u65b9\u6cd5\u4f53\u548c\u63a5\u53e3&#xff0c;JVM \u4f7f\u7528\u65b9\u6cd5\u53e5\u67c4\u6267\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2.2 \u9002\u7528\u6761\u4ef6<\/h3>\n<h4>2.2.3 \u76ee\u6807\u7c7b\u578b\u5fc5\u987b\u662f\u51fd\u6570\u5f0f\u63a5\u53e3&#xff08;\u5fc5\u987b\u6ee1\u8db3&#xff09;<\/h4>\n<p><span class=\"token annotation punctuation\">&#064;FunctionalInterface<\/span><br \/>\n<span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">Task<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>\u53ea\u80fd\u6709\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5&#xff0c;\u9ed8\u8ba4\u65b9\u6cd5 \/ static \u65b9\u6cd5\u4e0d\u7b97<\/li>\n<li>\u591a\u4e2a\u62bd\u8c61\u65b9\u6cd5 \u2192 \u4e0d\u80fd\u7528 Lambda<\/li>\n<\/ul>\n<h3>2.3 \u4ece\u8bbe\u8ba1\u89d2\u5ea6\u6765\u8bf4<\/h3>\n<p>\u9002\u5408&#xff1a;<\/p>\n<p>() -&gt; System.out.println(&#034;\u6267\u884c\u4efb\u52a1&#034;);<\/p>\n<p>\u4e0d\u9002\u5408&#xff1a;<\/p>\n<p>() -&gt; {<br \/>\n    \/\/ 100 \u884c\u590d\u6742\u903b\u8f91<br \/>\n    \/\/ \u591a\u5c42 if \/ try-catch<br \/>\n}<\/p>\n<p>\u590d\u6742\u903b\u8f91\u4f7f\u7528\u5916\u90e8\u7c7b\u66f4\u6e05\u6670<\/p>\n<table>\n<tr>\u884c\u4e3aLambda \u662f\u5426\u5141\u8bb8<\/tr>\n<tbody>\n<tr>\n<td>\u8bfb\u53d6\u5916\u90e8\u5c40\u90e8\u53d8\u91cf<\/td>\n<td>\u5141\u8bb8<\/td>\n<\/tr>\n<tr>\n<td>\u4fee\u6539\u5916\u90e8\u5c40\u90e8\u53d8\u91cf<\/td>\n<td>\u4e0d\u5141\u8bb8<\/td>\n<\/tr>\n<tr>\n<td>\u5728 Lambda \u5185\u58f0\u660e\u5c40\u90e8\u53d8\u91cf<\/td>\n<td>\u5141\u8bb8<\/td>\n<\/tr>\n<tr>\n<td>\u5728\u591a\u6b21\u6267\u884c\u95f4\u4fdd\u7559\u72b6\u6001<\/td>\n<td>\u4e0d\u5141\u8bb8<\/td>\n<\/tr>\n<tr>\n<td>\u5b9a\u4e49\u6210\u5458\u53d8\u91cf<\/td>\n<td>\u4e0d\u5141\u8bb8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>2.4 \u4f7f\u7528\u573a\u666f<\/h3>\n<p>1&#xff1a;\u4e00\u6b21\u6027\u7b56\u7565 \/ \u4e34\u65f6\u89c4\u5219<\/p>\n<p>Collections.sort(list, (a, b) -&gt; b &#8211; a);<\/p>\n<p>\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u89c4\u5219\u53ea\u7528\u4e00\u6b21<\/li>\n<li>\u6ca1\u6709\u4e1a\u52a1\u547d\u540d\u4ef7\u503c<\/li>\n<\/ul>\n<p>2&#xff1a;\u56de\u8c03 \/ \u4e8b\u4ef6\u5904\u7406<\/p>\n<p>executor.submit(() -&gt; doWork());<br \/>\nbutton.onClick(() -&gt; save());<\/p>\n<p>3&#xff1a;\u904d\u5386\u4e0e\u6d41\u5f0f\u5904\u7406<\/p>\n<p>list.forEach(item -&gt; System.out.println(item));<br \/>\nlist.stream()<br \/>\n    .filter(x -&gt; x &gt; 10)<br \/>\n    .map(x -&gt; x * 2)<br \/>\n    .forEach(System.out::println);<\/p>\n<p>4&#xff1a;\u6a21\u677f\u65b9\u6cd5 \/ \u6267\u884c\u5668\u7684\u201c\u53ef\u53d8\u6b65\u9aa4\u201d<\/p>\n<p>TaskExecutor.runTask(() -&gt; System.out.println(&#034;\u4efb\u52a1\u6267\u884c\u4e86&#034;));<\/p>\n<h3>2.5 \u6e90\u7801<\/h3>\n<ul>\n<li>\u76f8\u5173\u6e90\u7801\u5728 java.lang.invoke.LambdaMetafactory&#xff0c;\u53ef\u4ee5\u81ea\u5df1\u8bfb\u8bfb\u3002<\/li>\n<\/ul>\n<h2>3 \u66f4\u7b80\u6d01\u7684\u8bed\u6cd5\u7cd6&#xff1a;\u65b9\u6cd5\u5f15\u7528<\/h2>\n<p>Lambda&#xff0c;\u5df2\u7ecf\u5f88\u7b80\u5355\u4e86&#xff0c;\u90a3\u80fd\u4e0d\u80fd\u66f4\u7b80\u5355\u5462&#xff1f;\u7b54\u6848\u662f &#xff1a; \u7528\u65b9\u6cd5\u5f15\u7528<\/p>\n<p>\u6709\u4e00\u4e2a\u9700\u6c42&#xff0c;\u7ed9list\u505a\u6392\u5e8f&#xff0c;\u9700\u8981\u600e\u4e48\u505a\u5462&#xff1f;<\/p>\n<p>\u4f7f\u7528\u533f\u540d\u5185\u90e8\u7c7b<\/p>\n<p><span class=\"token comment\">\/\/ \u4f7f\u7528\u533f\u540d\u5185\u90e8\u7c7b<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SortExampleAnonymous<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> names <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">Arrays<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">asList<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Bob&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Alice&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Charlie&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        names<span class=\"token punctuation\">.<\/span><span class=\"token function\">sort<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Comparator<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n            <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">int<\/span> <span class=\"token function\">compare<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> s1<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> s2<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> s1<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareTo<\/span><span class=\"token punctuation\">(<\/span>s2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>names<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4f7f\u7528Lambda\u8868\u8fbe\u5f0f<\/p>\n<p>public class SortExampleLambda {<br \/>\n    public static void main(String[] args) {<\/p>\n<p>        List&lt;String&gt; names &#061; Arrays.asList(&#034;Bob&#034;, &#034;Alice&#034;, &#034;Charlie&#034;);<\/p>\n<p>        names.sort((s1, s2) -&gt; s1.compareTo(s2)); <\/p>\n<p>        System.out.println(names);<br \/>\n    }<br \/>\n}<\/p>\n<p>\u4f7f\u7528\u65b9\u6cd5\u5f15\u7528<\/p>\n<p>public class SortExampleMethodRef {<br \/>\n    public static void main(String[] args) {<\/p>\n<p>        List&lt;String&gt; names &#061; Arrays.asList(&#034;Bob&#034;, &#034;Alice&#034;, &#034;Charlie&#034;);<\/p>\n<p>        \/\/ \u65b9\u6cd5\u5f15\u7528<br \/>\n        names.sort(String::compareToIgnoreCase);<br \/>\n        \/\/ \u9700\u8981\u6ee1\u8db3&#xff1a;<br \/>\n        \/\/ 1. \u5f15\u7528\u5904\u9700\u8981\u662f\u51fd\u6570\u5f0f\u63a5\u53e3<br \/>\n        \/\/ 2. \u88ab\u5f15\u7528\u7684\u65b9\u6cd5\u9700\u8981\u5df2\u7ecf\u5b58\u5728<br \/>\n        \/\/ 3. \u88ab\u5f15\u7528\u65b9\u6cd5\u7684\u5f62\u53c2\u548c\u8fd4\u56de\u503c\u9700\u8981\u8ddf\u62bd\u8c61\u65b9\u6cd5\u7684\u5f62\u53c2\u548c\u8fd4\u56de\u503c\u4fdd\u6301\u4e00\u81f4<br \/>\n        \/\/ 4. \u88ab\u5f15\u7528\u65b9\u6cd5\u7684\u529f\u80fd\u9700\u8981\u6ee1\u8db3\u5f53\u524d\u7684\u8981\u6c42<\/p>\n<p>        System.out.println(names);<br \/>\n    }<br \/>\n}<\/p>\n<ul>\n<li>String::compareToIgnoreCase\u7684\u610f\u601d\u662f\u4f7f\u7528Stringi\u7c7b\u4e0b\u7684compareToIgnoreCase&#xff0c;\u65b9\u6cd5\u5f15\u7528\u5199\u5728\u62ec\u53f7\u91cc\u7684\u65b9\u6cd5\u4e00\u5b9a\u8981\u662f\u5df2\u6709\u7684\u65b9\u6cd5\u3002\u5c31\u5982\u4e0b\u9762\u8fd9\u6837<\/li>\n<\/ul>\n<p>public class SortExampleCustomMethod {<br \/>\n    public static void main(String[] args) {<br \/>\n        List&lt;String&gt; names &#061; Arrays.asList(&#034;Bob&#034;, &#034;Alice&#034;, &#034;Charlie&#034;);<\/p>\n<p>        \/\/ \u4f7f\u7528\u81ea\u5b9a\u4e49\u65b9\u6cd5\u8fdb\u884c\u6392\u5e8f<br \/>\n        names.sort(SortExampleCustomMethod::compareIgnoreCase);<\/p>\n<p>        System.out.println(names);<br \/>\n    }<\/p>\n<p>    \/\/ \u81ea\u5b9a\u4e49\u6bd4\u8f83\u65b9\u6cd5<br \/>\n    public static int compareIgnoreCase(String s1, String s2) {<br \/>\n        return s1.toLowerCase().compareTo(s2.toLowerCase());<br \/>\n    }<br \/>\n}<\/p>\n<ul>\n<li>\u65b9\u6cd5\u5f15\u7528\u5bf9JavaAPI\u4e86\u89e3\u8981\u6c42\u6bd4\u8f83\u9ad8<\/li>\n<\/ul>\n<table>\n<tr>\u5f62\u5f0f\u8bed\u6cd5\u793a\u4f8b\u6761\u4ef6<\/tr>\n<tbody>\n<tr>\n<td>\u9759\u6001\u65b9\u6cd5\u5f15\u7528<\/td>\n<td>ClassName::staticMethod<\/td>\n<td>\u53c2\u6570\u987a\u5e8f\u548c\u7c7b\u578b\u8981\u4e0e\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u62bd\u8c61\u65b9\u6cd5\u5339\u914d<\/td>\n<\/tr>\n<tr>\n<td>\u5b9e\u4f8b\u65b9\u6cd5\u5f15\u7528&#xff08;\u7279\u5b9a\u5bf9\u8c61&#xff09;<\/td>\n<td>instance::instanceMethod<\/td>\n<td>\u63a5\u53e3\u65b9\u6cd5\u7684\u53c2\u6570\u5217\u8868\u8981\u4e0e\u5b9e\u4f8b\u65b9\u6cd5\u5339\u914d&#xff08;\u4e0d\u5305\u542b\u5bf9\u8c61\u672c\u8eab&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u7c7b\u540d\u5f15\u7528\u5b9e\u4f8b\u65b9\u6cd5<\/td>\n<td>ClassName::instanceMethod<\/td>\n<td>\u63a5\u53e3\u65b9\u6cd5\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f5c\u4e3a\u8c03\u7528\u5bf9\u8c61&#xff0c;\u5176\u4f59\u53c2\u6570\u4f5c\u4e3a\u65b9\u6cd5\u53c2\u6570<\/td>\n<\/tr>\n<tr>\n<td>\u6784\u9020\u5668\u5f15\u7528<\/td>\n<td>ClassName::new<\/td>\n<td>\u63a5\u53e3\u65b9\u6cd5\u7684\u53c2\u6570\u5217\u8868\u8981\u4e0e\u6784\u9020\u51fd\u6570\u53c2\u6570\u5339\u914d&#xff0c;\u8fd4\u56de\u7c7b\u578b\u662f\u5bf9\u8c61\u7c7b\u578b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\n<p>\u65b9\u6cd5\u5f15\u7528\u53ef\u4ee5\u7528\u5728 \u51fd\u6570\u5f0f\u63a5\u53e3&#xff08;Functional Interface&#xff09;\u7684\u4e0a\u4e0b\u6587\u4e2d&#xff0c;\u4e5f\u5c31\u662f\u8bf4\u63a5\u53e3\u4e2d\u5fc5\u987b \u53ea\u6709\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5\u3002<\/p>\n<\/li>\n<li>\n<p>\u65b9\u6cd5\u5f15\u7528\u4e0d\u80fd\u4fee\u6539\u65b9\u6cd5\u7b7e\u540d&#xff0c;\u5b83\u53ea\u662f Lambda \u7684\u7b80\u5199\u3002<\/p>\n<\/li>\n<li>\n<p>\u65b9\u6cd5\u5f15\u7528\u6bd4 Lambda \u7b80\u6d01&#xff0c;\u4f46\u4e0d\u9002\u5408\u590d\u6742\u903b\u8f91\u3002<\/p>\n<\/li>\n<li>\n<p>\u53c2\u6570\u7c7b\u578b\u53ef\u4ee5\u901a\u8fc7\u4e0a\u4e0b\u6587\u63a8\u65ad&#xff0c;\u6240\u4ee5\u901a\u5e38\u4e0d\u9700\u8981\u663e\u793a\u5199\u51fa\u3002<\/p>\n<\/li>\n<li>\n<p>lambda\u5728\u6211\u773c\u91cc\u7b97\u80fd\u63a5\u53d7\u7684\u800c\u65b9\u6cd5\u5f15\u7528\u62bd\u8c61\u7684\u592a\u6df1\u4e86&#xff0c;\u4e5f\u4e0d\u662f\u672c\u6587\u91cd\u70b9&#xff0c;\u4e0d\u591a\u4ecb\u7ecd\u3002<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Lambda\u7684\u8bbe\u8ba1\u662f\u4e3a\u4e86\u4ee3\u7801\u7684\u4f18\u96c5&#xff0c;\u8981\u60f3\u7406\u89e3Lambda&#xff0c;\u5f97\u4ece\u5f88\u5f00\u59cb\u8bb2\u8d77\u3002<br \/>\n\u4e0b\u9762\u662f\u4e00\u53e5\u8bdd\u7406\u89e3\u90e8\u5206&#xff0c;\u5982\u679c\u4f60\u770b\u5230\u8fd9\u4e00\u53e5\u8bdd\u540e\u4f1a\u4e86&#xff0c;\u90a3\u540e\u9762\u90fd\u957f\u7bc7\u5927\u8bba\u5c31\u4e0d\u7528\u770b\u4e86\u3002<br \/>\nlambda\u4f5c\u7528\u662f\u51cf\u5c11\u4e00\u6b21\u6027\u5b9e\u73b0\u63a5\u53e3\/\u533f\u540d\u5185\u90e8\u7c7b\u7684\u5197\u4f59&#xff0c;\u662f\u5bf9\u533f\u540d\u5185\u90e8\u7c7b\u7684\u7b80\u5316&#xff0c;\u672c\u8d28\u662f\u4e00\u4e2a\u201c\u53ef\u4f20\u9012\u7684\u884c\u4e3a&#xff08;\u51fd\u6570&#xff09;\u30021 \u4ece\u63a5\u53e3\u5f00\u59cb\u7684\u6700\u4f73\u5b9e\u8df5<br \/>\n\u6211\u4eec\u90fd\u77e5\u9053&#xff0c;\u804c\u8d23\u5212\u5206\u6838\u5fc3\u601d\u60f3\u662f&#xff1a;\u4efb\u52a1\u903b\u8f91\u548c\u6267\u884c\u903b<\/p>\n","protected":false},"author":2,"featured_media":59764,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,98,292,188],"topic":[],"class_list":["post-59765","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-spring-boot","tag-292","tag-188"],"yoast_head":"<!-- This site is optimized with the Yoast 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