{"id":79096,"date":"2026-03-01T00:09:06","date_gmt":"2026-02-28T16:09:06","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/79096.html"},"modified":"2026-03-01T00:09:06","modified_gmt":"2026-02-28T16:09:06","slug":"javascript%e7%ac%94%e8%ae%b0%e7%ac%ac3%e7%af%87-typescript-%e8%a3%85%e9%a5%b0%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/79096.html","title":{"rendered":"JavaScript\u7b14\u8bb0\u7b2c3\u7bc7 TypeScript \u88c5\u9970\u5668"},"content":{"rendered":"<hr \/>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>\n<ul>\n<li>\n<ul>\n<li>\u88c5\u9970\u5668\u7684\u6982\u5ff5<\/li>\n<li>\u88c5\u9970\u5668\u7684\u91ca\u4e49<\/li>\n<li>\u88c5\u9970\u5668\u7684\u5e94\u7528\u987a\u5e8f<\/li>\n<li>\u7c7b\u88c5\u9970\u5668<\/li>\n<li>\u65b9\u6cd5\u88c5\u9970\u5668<\/li>\n<li>\u8bbf\u95ee\u88c5\u9970\u5668<\/li>\n<li>\u5c5e\u6027\u88c5\u9970\u5668<\/li>\n<li>\u53c2\u6570\u88c5\u9970\u5668<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h5>\u88c5\u9970\u5668\u7684\u6982\u5ff5<\/h5>\n<ul>\n<li>\u4e0d\u4fee\u6539\u7c7b\u58f0\u660e\u548c\u7c7b\u7ed3\u6784\u7684\u6761\u4ef6\u4e0b, \u6539\u53d8\u7c7b\u7684\u884c\u4e3a<\/li>\n<li>\u4e00\u4e2a\u5f88\u597d\u7684\u6bd4\u55bb:\n<ul>\n<li>\u5c31\u50cf\u662f\u5957\u5728\u6c34\u9f99\u5934\u4e0a\u7684\u6ce1\u6cab\u5668<\/li>\n<li>\u53ef\u4ee5\u4f7f\u6c34\u5e26\u4e0a\u6ce1\u6cab, \u4e5f\u53ef\u4ee5\u5565\u4e5f\u4e0d\u5e72<\/li>\n<li>\u800c\u4e14\u4e0d\u5f71\u54cd\u6c34\u9f99\u5934\u672c\u8eab\u7684\u7ed3\u6784<\/li>\n<\/ul>\n<\/li>\n<li>TypeScript\u88c5\u9970\u5668\u53ea\u80fd\u51fa\u73b0\u5728\u7c7b\u4e2d\u5404\u5904, \u4f7f\u7528&#064;Decorator\u5f62\u5f0f<\/li>\n<li>\u6309\u7167\u51fa\u73b0\u7684\u4f4d\u7f6e, \u53ef\u5206\u4e3a\n<ul>\n<li>\u7c7b\u88c5\u9970\u5668: \u4fee\u9970\u7c7b\u672c\u8eab<\/li>\n<li>\u65b9\u6cd5\u88c5\u9970\u5668: \u4fee\u9970\u7c7b\u65b9\u6cd5(\u5305\u62ec\u5b9e\u4f8b\u65b9\u6cd5\u548c\u9759\u6001\u65b9\u6cd5)<\/li>\n<li>\u5c5e\u6027\u88c5\u9970\u5668: \u4fee\u9970\u7c7b\u5c5e\u6027(\u5305\u62ec\u5b9e\u4f8b\u5c5e\u6027\u548c\u9759\u6001\u5c5e\u6027)<\/li>\n<li>\u8bbf\u95ee\u88c5\u9970\u5668: \u4fee\u9970get\/set\u8bbf\u95ee\u5668\u5c5e\u6027<\/li>\n<li>\u53c2\u6570\u88c5\u9970\u5668: \u4fee\u9970\u65b9\u6cd5\u53c2\u6570(\u5305\u62ec\u5b9e\u4f8b\u65b9\u6cd5\u53c2\u6570, \u9759\u6001\u65b9\u6cd5\u53c2\u6570\u548c\u6784\u9020\u51fd\u6570\u53c2\u6570)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<p>\u521d\u6b65\u5165\u95e8: \u88c5\u9970\u5668\u4fee\u9970\u6548\u679c\u5982\u4e0b, \u540e\u6587\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u6bcf\u4e00\u79cd\u88c5\u9970\u5668\u7684\u542b\u4e49\u548c\u7528\u6cd5<\/p>\n<p><span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">ClassDecorator<\/span><\/span> <span class=\"token comment\">\/\/ \u7c7b\u88c5\u9970\u5668<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Person<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">AttributeDecorator<\/span><\/span> <span class=\"token comment\">\/\/ \u5c5e\u6027\u88c5\u9970\u5668<\/span><br \/>\n  <span class=\"token keyword\">private<\/span> _name<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token function\">constructor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">ParamDecorator<\/span><\/span> name<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u53c2\u6570\u88c5\u9970\u5668<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>_name <span class=\"token operator\">&#061;<\/span> name<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">MethodDecorator<\/span><\/span> <span class=\"token comment\">\/\/ \u65b9\u6cd5\u88c5\u9970\u5668<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> <span class=\"token function\">greeting<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">Hello<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">AccessDecorator<\/span><\/span> <span class=\"token comment\">\/\/ \u8bbf\u95ee\u88c5\u9970\u5668<\/span><br \/>\n  <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">get<\/span> <span class=\"token function\">name<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>_name<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">MethodDecorator<\/span><\/span> <span class=\"token comment\">\/\/ \u65b9\u6cd5\u88c5\u9970\u5668<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token function\">GetStandardWeight<\/span><span class=\"token punctuation\">(<\/span><span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">ParamDecorator<\/span><\/span> height<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ \u53c2\u6570\u88c5\u9970\u5668<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> height <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">105<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h5>\u88c5\u9970\u5668\u7684\u91ca\u4e49<\/h5>\n<ul>\n<li>\u88c5\u9970\u5668\u4f7f\u7528\u5f62\u5982&#064;Decorator\u7684\u8bed\u53e5, \u653e\u7f6e\u5728\u5bf9\u5e94\u7684\u76ee\u6807\u4e0a\u65b9, \u5df2\u8fbe\u5230\u4fee\u9970\u4f5c\u7528<\/li>\n<li>\u88c5\u9970\u5668\u7684\u6c42\u503c\u7ed3\u679c\u5fc5\u987b\u662f\u4e00\u4e2a\u5e26\u6709\u7b26\u5408\u8981\u6c42\u7684\u53c2\u6570\u7684\u51fd\u6570\n<ul>\n<li>\u4f7f\u7528&#064;Decorator: \u672c\u8eab\u662f\u4e00\u4e2a\u7b26\u5408\u8981\u6c42\u7684\u51fd\u6570<\/li>\n<li>\u4f7f\u7528&#064;Decorator(), \u5176\u8fd0\u884c\u7ed3\u679c\u662f\u4e00\u4e2a\u7b26\u5408\u8981\u6c42\u7684\u51fd\u6570<\/li>\n<\/ul>\n<\/li>\n<li>\u66f4\u63a8\u8350\u4f7f\u7528&#064;Decorator(), \u53ef\u4ee5\u5b9e\u73b0\u66f4\u591a\u7684\u64cd\u4f5c<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u4ee5\u7c7b\u88c5\u9970\u5668\u4e3a\u4f8b, \u7c7b\u88c5\u9970\u5668\u51fd\u6570\u53ea\u6709\u4e00\u4e2a\u53c2\u6570: \u7c7b\u7684\u6784\u9020\u51fd\u6570<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49\u88c5\u9970\u5668\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">Decorator<\/span><span class=\"token punctuation\">(<\/span>constructor<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/**  *\/<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">Decorator<\/span><\/span> <span class=\"token comment\">\/\/ \u4f7f\u7528\u88c5\u9970\u5668, \u8fd9\u91cc\u4ee3\u8868\u4e86\u4e00\u4e2a\u63a5\u53d7constructor\u53c2\u6570\u7684\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Person<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/**  *\/<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7b2c\u4e8c\u79cd\u88c5\u9970\u5668\u51fd\u6570\u7684\u5b9a\u4e49\u65b9\u6cd5<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">Decraotor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span>constructor<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/**  *\/<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">Decorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u4f7f\u7528\u88c5\u9970\u5668, \u8fd9\u91cc\u4e5f\u4ee3\u8868\u4e86\u4e00\u4e2a\u63a5\u53d7constructor\u53c2\u6570\u7684\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Person<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/**  *\/<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u88c5\u9970\u5668\u7684\u5e94\u7528\u987a\u5e8f<\/h5>\n<ul>\n<li>\u9996\u5148\u662f\u5904\u7406\u5b9e\u4f8b\u6210\u5458, \u4f9d\u6b21\u5e94\u7528:\n<ul>\n<li>\u53c2\u6570\u88c5\u9970\u5668<\/li>\n<li>\u65b9\u6cd5\u88c5\u9970\u5668<\/li>\n<li>\u8bbf\u95ee\u88c5\u9970\u5668<\/li>\n<li>\u5c5e\u6027\u88c5\u9970\u5668<\/li>\n<\/ul>\n<\/li>\n<li>\u5176\u6b21\u662f\u5904\u7406\u9759\u6001\u6210\u5458, \u4f9d\u6b21\u5e94\u7528:\n<ul>\n<li>\u53c2\u6570\u88c5\u9970\u5668<\/li>\n<li>\u65b9\u6cd5\u88c5\u9970\u5668<\/li>\n<li>\u8bbf\u95ee\u88c5\u9970\u5668<\/li>\n<li>\u5c5e\u6027\u88c5\u9970\u5668<\/li>\n<\/ul>\n<\/li>\n<li>\u63a5\u7740\u662f\u5904\u7406\u6784\u9020\u51fd\u6570, \u5e94\u7528\u53c2\u6570\u88c5\u9970\u5668<\/li>\n<li>\u6700\u540e\u5728\u7c7b\u4e0a\u5e94\u7528\u7c7b\u88c5\u9970\u5668<\/li>\n<\/ul>\n<h5>\u7c7b\u88c5\u9970\u5668<\/h5>\n<ul>\n<li>\u53c2\u6570: \u7c7b\u88c5\u9970\u5668\u53ea\u6709\u4e00\u4e2a\u53c2\u6570, \u7c7b\u7684\u6784\u9020\u51fd\u6570<\/li>\n<li>\u8fd4\u56de\u503c: \u8fd4\u56de\u503c\u4f1a\u66ff\u6362\u7c7b\u539f\u672c\u7684\u58f0\u660e(\u53d8\u6210\u65b0\u7684\u7c7b)<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u5229\u7528\u7c7b\u88c5\u9970\u5668, \u5c06\u88ab\u88c5\u9970\u7684\u7c7b\u5b8c\u5168\u66ff\u6362\u6210\u4e00\u4e2a\u65b0\u7684\u7c7b<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token generic-function\"><span class=\"token function\">ClassDecorator<\/span><span class=\"token generic class-name\"><span class=\"token operator\">&lt;<\/span><span class=\"token constant\">T<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8230;<\/span>args<span class=\"token operator\">:<\/span> <span class=\"token builtin\">any<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><\/span><\/span><span class=\"token punctuation\">(<\/span>constructor<span class=\"token operator\">:<\/span> <span class=\"token constant\">T<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\"><span class=\"token keyword\">extends<\/span><\/span> constructor <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> property1<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;decorator&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> property2<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;decorator&#039;<\/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 decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">ClassDecorator<\/span><\/span><br \/>\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ExampleClass<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> property1<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;not decorator&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> property2<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">constructor<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>property2 <span class=\"token operator\">&#061;<\/span> message<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">const<\/span> ec <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ExampleClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;zhagnzhen&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token builtin\">console<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>ec<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ Person { property1: &#039;decorator&#039;, property2: &#039;decorator&#039; }<\/span><\/p>\n<h5>\u65b9\u6cd5\u88c5\u9970\u5668<\/h5>\n<ul>\n<li>\u53c2\u6570: target, property, descripter\n<ul>\n<li>target: \u5bf9\u4e8e\u9759\u6001\u6210\u5458: \u662f\u7c7b\u7684\u6784\u9020\u51fd\u6570, \u5bf9\u4e8e\u5b9e\u4f8b\u6210\u5458: \u662f\u7c7b\u7684\u539f\u578b\u5bf9\u8c61<\/li>\n<li>property: \u6210\u5458\u7684\u540d\u5b57<\/li>\n<li>descripter: \u6210\u5458\u7684\u5c5e\u6027\u63cf\u8ff0\u7b26(\u82e5TS\u4ee3\u7801\u7f16\u8bd1\u76ee\u6807\u4f4e\u4e8eES5, \u5c06\u4f1a\u4e3aundefined)<\/li>\n<\/ul>\n<\/li>\n<li>\u8fd4\u56de\u503c: \u8fd4\u56de\u503c\u4f1a\u7528\u4f5c\u65b9\u6cd5\u7684\u5c5e\u6027\u63cf\u8ff0\u7b26<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u5229\u7528\u65b9\u6cd5\u88c5\u9970\u5668, \u6539\u5199\u88ab\u88c5\u9970\u7684\u65b9\u6cd5, \u8fd9\u91cc\u7528\u5230\u4e86\u53c2\u6570\u6765\u63a7\u5236\u662f\u5426\u6539\u5199<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">MethodDecorator<\/span><span class=\"token punctuation\">(<\/span>override<span class=\"token operator\">:<\/span> <span class=\"token builtin\">boolean<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span>target<span class=\"token operator\">:<\/span> <span class=\"token builtin\">any<\/span><span class=\"token punctuation\">,<\/span> propertyKey<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">,<\/span> descripter<span class=\"token operator\">:<\/span> PropertyDescriptor<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>override<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u6539\u5199\u539f\u65b9\u6cd5<\/span><br \/>\n      descripter<span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">value<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token builtin\">console<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;this method was override!&#039;<\/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><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ExampleClass<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">MethodDecorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> <span class=\"token function\">doSomething1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token builtin\">console<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;something1 was did!&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">MethodDecorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> <span class=\"token function\">doSomething2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token builtin\">console<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;something2 was did!&#039;<\/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><br \/>\n<span class=\"token keyword\">const<\/span> ec <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ExampleClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nec<span class=\"token punctuation\">.<\/span><span class=\"token function\">doSomething1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ this method was override!<\/span><br \/>\nec<span class=\"token punctuation\">.<\/span><span class=\"token function\">doSomething2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ something2 was did!<\/span><\/p>\n<h5>\u8bbf\u95ee\u88c5\u9970\u5668<\/h5>\n<ul>\n<li>\u53c2\u6570: target, property, descripter\n<ul>\n<li>target: \u5bf9\u4e8e\u9759\u6001\u6210\u5458: \u662f\u7c7b\u7684\u6784\u9020\u51fd\u6570, \u5bf9\u4e8e\u5b9e\u4f8b\u6210\u5458: \u662f\u7c7b\u7684\u539f\u578b\u5bf9\u8c61<\/li>\n<li>property: \u6210\u5458\u7684\u540d\u5b57<\/li>\n<li>descripter: \u6210\u5458\u7684\u5c5e\u6027\u63cf\u8ff0\u7b26(\u82e5TS\u4ee3\u7801\u7f16\u8bd1\u76ee\u6807\u4f4e\u4e8eES5, \u5c06\u4f1a\u4e3aundefined)<\/li>\n<\/ul>\n<\/li>\n<li>\u8fd4\u56de\u503c: \u8fd4\u56de\u503c\u4f1a\u7528\u4f5c\u65b9\u6cd5\u7684\u5c5e\u6027\u63cf\u8ff0\u7b26<\/li>\n<li>\u4e0d\u5141\u8bb8\u540c\u65f6\u88c5\u9970\u4e00\u4e2a\u6210\u5458\u7684get\u548cset\u8bbf\u95ee\u5668<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u8bbf\u95ee\u88c5\u9970\u5668, \u76ee\u524d\u8fd8\u6ca1\u7814\u7a76\u51fa\u6709\u4ec0\u4e48\u7528, \u4f30\u8ba1\u662f\u8981\u548c\u5176\u4ed6\u4e1c\u4e1c\u4e00\u8d77\u4f7f\u7528<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">AccessorDecorator<\/span><span class=\"token punctuation\">(<\/span>configurable<span class=\"token operator\">:<\/span> <span class=\"token builtin\">boolean<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span>target<span class=\"token operator\">:<\/span> <span class=\"token builtin\">any<\/span><span class=\"token punctuation\">,<\/span> propertyKey<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">,<\/span> descripter<span class=\"token operator\">:<\/span> PropertyDescriptor<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    descripter<span class=\"token punctuation\">.<\/span>configurable <span class=\"token operator\">&#061;<\/span> configurable<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 keyword\">class<\/span> <span class=\"token class-name\">ExampleClass<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">private<\/span> _x<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token keyword\">private<\/span> _y<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token function\">constructor<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">,<\/span> y<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>_x <span class=\"token operator\">&#061;<\/span> x<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>_y <span class=\"token operator\">&#061;<\/span> y<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">AccessorDecorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">get<\/span> <span class=\"token function\">x<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>_x<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">AccessorDecorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">get<\/span> <span class=\"token function\">y<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>_y<span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h5>\u5c5e\u6027\u88c5\u9970\u5668<\/h5>\n<ul>\n<li>\u53c2\u6570: target, property\n<ul>\n<li>target: \u5bf9\u4e8e\u9759\u6001\u6210\u5458: \u662f\u7c7b\u7684\u6784\u9020\u51fd\u6570, \u5bf9\u4e8e\u5b9e\u4f8b\u6210\u5458: \u662f\u7c7b\u7684\u539f\u578b\u5bf9\u8c61<\/li>\n<li>property: \u6210\u5458\u7684\u540d\u5b57<\/li>\n<\/ul>\n<\/li>\n<li>\u8fd4\u56de\u503c: \u4f1a\u88ab\u5ffd\u7565<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u5229\u7528\u5c5e\u6027\u88c5\u9970\u5668\u7ed9\u5c5e\u6027\u8d4b\u9ed8\u8ba4\u503c(\u7814\u7a76\u4e00\u4e0bAngular\u7684&#064;Input())<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">AttributeDecorator<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span>target<span class=\"token operator\">:<\/span> <span class=\"token builtin\">any<\/span><span class=\"token punctuation\">,<\/span> property<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    target<span class=\"token punctuation\">[<\/span>property<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> value<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 keyword\">class<\/span> <span class=\"token class-name\">ExampleClass<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">AttributeDecorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;default-title&#039;<\/span><span class=\"token punctuation\">)<\/span> title<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span> <span class=\"token operator\">|<\/span> <span class=\"token keyword\">undefined<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">AttributeDecorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;default-name&#039;<\/span><span class=\"token punctuation\">)<\/span> name<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span> <span class=\"token operator\">|<\/span> <span class=\"token keyword\">undefined<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token keyword\">public<\/span> <span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token builtin\">console<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>title<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token builtin\">console<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">const<\/span> ec <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ExampleClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nec<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ default-title<\/span><br \/>\n<span class=\"token comment\">\/\/ default-name<\/span><\/p>\n<h5>\u53c2\u6570\u88c5\u9970\u5668<\/h5>\n<ul>\n<li>\u53c2\u6570: target, property, index\n<ul>\n<li>target: \u5bf9\u4e8e\u9759\u6001\u6210\u5458: \u662f\u7c7b\u7684\u6784\u9020\u51fd\u6570, \u5bf9\u4e8e\u5b9e\u4f8b\u6210\u5458: \u662f\u7c7b\u7684\u539f\u578b\u5bf9\u8c61<\/li>\n<li>property: \u6210\u5458\u7684\u540d\u5b57<\/li>\n<li>index: \u53c2\u6570\u5728\u51fd\u6570\u53c2\u6570\u5217\u8868\u4e2d\u7684\u7d22\u5f15<\/li>\n<\/ul>\n<\/li>\n<li>\u8fd4\u56de\u503c: \u4f1a\u88ab\u5ffd\u7565<\/li>\n<\/ul>\n<p><span class=\"token comment\">\/\/ \u53c2\u6570\u88c5\u9970\u5668\u67e5\u770b\u53c2\u6570\u7684\u7d22\u5f15, \u76ee\u524d\u6ca1\u6709\u7814\u7a76\u51fa\u6709\u4ec0\u4e48\u7528, \u4f30\u8ba1\u662f\u548c\u5176\u5b83\u4e1c\u4e1c\u4e00\u8d77\u4f7f\u7528<\/span><br \/>\n<span class=\"token keyword\">function<\/span> <span class=\"token function\">ParameterDecorator<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span>target<span class=\"token operator\">:<\/span> <span class=\"token builtin\">any<\/span><span class=\"token punctuation\">,<\/span> propertyKey<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">,<\/span> index<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token builtin\">console<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token string\">\u53c2\u6570\u88c5\u9970\u5668\u88c5\u9970\u5728\u4e86\u7b2c<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>index<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">\u4e2a\u53c2\u6570\u4e0a<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/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 keyword\">class<\/span> <span class=\"token class-name\">ExampleClass<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">public<\/span> <span class=\"token function\">mutiParameterMethod<\/span><span class=\"token punctuation\">(<\/span><br \/>\n    name<span class=\"token operator\">:<\/span> <span class=\"token builtin\">string<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    age<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token decorator\"><span class=\"token at operator\">&#064;<\/span><span class=\"token function\">ParameterDecorator<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> height<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    weight<span class=\"token operator\">:<\/span> <span class=\"token builtin\">number<\/span><br \/>\n  <span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u903b\u8f91\u4ee3\u7801<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">const<\/span> ec <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ExampleClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nec<span class=\"token punctuation\">.<\/span><span class=\"token function\">mutiParameterMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token 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