{"id":61254,"date":"2026-01-17T09:49:14","date_gmt":"2026-01-17T01:49:14","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/61254.html"},"modified":"2026-01-17T09:49:14","modified_gmt":"2026-01-17T01:49:14","slug":"%e4%bb%8ec%e5%88%b0c%e7%9a%84%e8%bd%ac%e5%9e%8b%e5%ae%8c%e5%85%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/61254.html","title":{"rendered":"\u4eceC++\u5230C#\u7684\u8f6c\u578b\u5b8c\u5168\u6307\u5357"},"content":{"rendered":"

\u5c0f\u674e：\u738b\u54e5，\u6211\u4eceC++\u8f6cC#\u5df2\u7ecf\u4e24\u5468\u4e86，\u611f\u89c9\u4ee3\u7801\u5199\u5f97\u5f88\u522b\u626d\u3002\u5f88\u591aC++\u7684\u4e60\u60ef\u5728C#\u91cc\u597d\u50cf\u90fd\u4e0d\u5bf9\u52b2，\u4f60\u80fd\u4e0d\u80fd\u7ed9\u6211\u4e00\u4e9b\u5efa\u8bae？<\/p>\n

\u738b\u54e5：\u5f53\u7136\u53ef\u4ee5！\u6211\u5f53\u521d\u8f6c\u578b\u65f6\u4e5f\u7ecf\u5386\u8fc7\u8fd9\u4e2a\u9636\u6bb5\u3002\u54b1\u4eec\u5c31\u4ece\u51e0\u4e2a\u6700\u91cd\u8981\u7684\u65b9\u9762\u5f00\u59cb\u5427\u3002\u9996\u5148，\u4f60\u8981\u5b8c\u6210\u4e00\u4e2a\u6700\u91cd\u8981\u7684\u5fc3\u6001\u8f6c\u53d8\u2014\u2014<\/p>\n

\u5fc3\u6001\u8f6c\u53d8：\u4ece\u201c\u63a7\u5236\u4e00\u5207\u201d\u5230\u201c\u4fe1\u4efb\u6846\u67b6\u201d<\/h3>\n

\u738b\u54e5：\u5728C++\u91cc，\u6211\u4eec\u4e60\u60ef\u4e86\u638c\u63a7\u4e00\u5207：\u5185\u5b58\u3001\u8d44\u6e90\u3001\u5e95\u5c42\u5b9e\u73b0\u3002\u4f46\u5728C#\u91cc，\u4f60\u9700\u8981\u5b66\u4f1a\u4fe1\u4efb.NET\u6846\u67b6\u548c\u5783\u573e\u56de\u6536\u5668\u3002<\/p>\n

\u5c0f\u674e：\u6211\u786e\u5b9e\u603b\u662f\u60f3\u624b\u52a8\u7ba1\u7406\u4e00\u5207，\u770b\u5230new\u5c31\u4e0b\u610f\u8bc6\u60f3\u627edelete\u3002<\/p>\n

\u738b\u54e5：\u8fd9\u6b63\u662f\u7b2c\u4e00\u4e2a\u8981\u6539\u7684\u4e60\u60ef！\u6211\u7ed9\u4f60\u770b\u4e2a\u4f8b\u5b50：<\/p>\n

\/\/ C++\u601d\u7ef4（\u9519\u8bef）<\/span>
\npublic<\/span> class<\/span> BadExample<\/span>
\n{<\/span>
\n private<\/span> List<<\/span>int<\/span>><\/span><\/span> data =<\/span> new<\/span> List<<\/span>int<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span><\/p>\n

~<\/span>BadExample<\/span>(<\/span>)<\/span> \/\/ \u9519\u8bef！\u4e0d\u8981\u5199\u6790\u6784\u51fd\u6570<\/span>
\n {<\/span>
\n \/\/ \u60f3\u624b\u52a8\u6e05\u7406<\/span>
\n data.<\/span>Clear<\/span>(<\/span>)<\/span>;<\/span>
\n data =<\/span> null<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\/\/ C#\u601d\u7ef4（\u6b63\u786e）<\/span>
\npublic<\/span> class<\/span> GoodExample<\/span>
\n{<\/span>
\n private<\/span> List<<\/span>int<\/span>><\/span><\/span> data =<\/span> new<\/span> List<<\/span>int<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5982\u679c\u6301\u6709\u975e\u6258\u7ba1\u8d44\u6e90\u624d\u9700\u8981IDisposable<\/span>
\n private<\/span> FileStream<\/span> file;<\/span><\/p>\n

public<\/span> void<\/span><\/span> Cleanup<\/span>(<\/span>)<\/span>
\n {<\/span>
\n \/\/ \u4e0d\u9700\u8981\u624b\u52a8\u6e05\u7406data，GC\u4f1a\u5904\u7406<\/span>
\n \/\/ \u53ea\u9700\u8981\u5904\u7406\u7279\u6b8a\u8d44\u6e90<\/span>
\n if<\/span> (<\/span>file !=<\/span> null<\/span>)<\/span>
\n {<\/span>
\n file.<\/span>Dispose<\/span>(<\/span>)<\/span>;<\/span>
\n file =<\/span> null<\/span>;<\/span>
\n }<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u5c0f\u674e：\u90a3\u6211\u600e\u4e48\u77e5\u9053\u4ec0\u4e48\u65f6\u5019\u9700\u8981\u624b\u52a8\u6e05\u7406？<\/p>\n

\u738b\u54e5：\u8bb0\u4f4f\u8fd9\u4e2a\u9ec4\u91d1\u6cd5\u5219：<\/p>\n

  • \u7eaf\u6258\u7ba1\u5bf9\u8c61（\u90fd\u662fC#\u7c7b）：\u4ea4\u7ed9GC<\/li>\n
  • \u975e\u6258\u7ba1\u8d44\u6e90（\u6587\u4ef6\u3001\u7f51\u7edc\u3001\u6570\u636e\u5e93\u8fde\u63a5）：\u5b9e\u73b0IDisposable<\/li>\n
  • \u5927\u5bf9\u8c61：\u8003\u8651\u5bf9\u8c61\u6c60<\/li>\n

    \/\/ \u6b63\u786e\u7684\u8d44\u6e90\u7ba1\u7406<\/span>
    \npublic<\/span> class<\/span> ResourceHandler<\/span> :<\/span> IDisposable<\/span><\/span>
    \n{<\/span>
    \n private<\/span> FileStream<\/span> _file;<\/span>
    \n private<\/span> bool<\/span><\/span> _disposed =<\/span> false<\/span>;<\/span><\/p>\n

    public<\/span> void<\/span><\/span> Process<\/span>(<\/span>)<\/span>
    \n {<\/span>
    \n using<\/span> (<\/span>var<\/span><\/span> stream =<\/span> new<\/span> FileStream<\/span>(<\/span>"data.txt"<\/span>,<\/span> FileMode.<\/span>Open)<\/span>)<\/span>
    \n {<\/span>
    \n \/\/ \u81ea\u52a8\u91ca\u653e<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u6216\u8005<\/span>
    \n using<\/span> var<\/span><\/span> reader =<\/span> new<\/span> StreamReader<\/span>(<\/span>"file.txt"<\/span>)<\/span>;<\/span>
    \n \/\/ \u79bb\u5f00\u4f5c\u7528\u57df\u81ea\u52a8\u91ca\u653e<\/span>
    \n }<\/span><\/p>\n

    public<\/span> void<\/span><\/span> Dispose<\/span>(<\/span>)<\/span>
    \n {<\/span>
    \n Dispose<\/span>(<\/span>true<\/span>)<\/span>;<\/span>
    \n GC.<\/span>SuppressFinalize<\/span>(<\/span>this<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    protected<\/span> virtual<\/span> void<\/span><\/span> Dispose<\/span>(<\/span>bool<\/span><\/span> disposing)<\/span>
    \n {<\/span>
    \n if<\/span> (<\/span>!<\/span>_disposed)<\/span>
    \n {<\/span>
    \n if<\/span> (<\/span>disposing)<\/span>
    \n {<\/span>
    \n _file?.<\/span>Dispose<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n _disposed =<\/span> true<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    \u7c7b\u578b\u7cfb\u7edf：\u5f15\u7528\u7c7b\u578b vs \u503c\u7c7b\u578b<\/h3>\n

    \u5c0f\u674e：\u6211\u7ecf\u5e38\u641e\u4e0d\u6e05\u4ec0\u4e48\u65f6\u5019\u7528class，\u4ec0\u4e48\u65f6\u5019\u7528struct\u3002<\/p>\n

    \u738b\u54e5：\u8fd9\u662f\u4e00\u4e2a\u5173\u952e\u533a\u522b！\u6211\u603b\u7ed3\u4e86\u4e00\u4e2a\u51b3\u7b56\u6811\u7ed9\u4f60：<\/p>\n

    \u9700\u8981\u7c7b\u578b\u5417？
    \n\u251c\u2500\u2500 \u9700\u8981\u7ee7\u627f\u6216\u591a\u6001\u5417？
    \n\u2502 \u251c\u2500\u2500 \u662f \u2192 \u7528class
    \n\u2502 \u2514\u2500\u2500 \u5426 \u2192
    \n\u2502 \u251c\u2500\u2500 \u5bf9\u8c61\u5f88\u5c0f（<16\u5b57\u8282）\u5417？
    \n\u2502 \u2502 \u251c\u2500\u2500 \u662f \u2192 \u8003\u8651struct
    \n\u2502 \u2502 \u2514\u2500\u2500 \u5426 \u2192 \u7528class
    \n\u2502 \u2514\u2500\u2500 \u9700\u8981\u503c\u8bed\u4e49（\u8d4b\u503c\u65f6\u590d\u5236）\u5417？
    \n\u2502 \u251c\u2500\u2500 \u662f \u2192 \u7528struct
    \n\u2502 \u2514\u2500\u2500 \u5426 \u2192 \u7528class<\/p>\n

    \u5c0f\u674e：\u503c\u8bed\u4e49\u662f\u4ec0\u4e48\u610f\u601d？<\/p>\n

    \u738b\u54e5：\u770b\u8fd9\u4e2a\u4f8b\u5b50\u5c31\u660e\u767d\u4e86：<\/p>\n

    \/\/ struct – \u503c\u8bed\u4e49<\/span>
    \npublic<\/span> struct<\/span> Point<\/span>
    \n{<\/span>
    \n public<\/span> int<\/span><\/span> X,<\/span> Y;<\/span><\/p>\n

    \/\/ \u63a8\u8350：\u8ba9struct\u4e0d\u53ef\u53d8<\/span>
    \n public<\/span> Point<\/span>(<\/span>int<\/span><\/span> x,<\/span> int<\/span><\/span> y)<\/span> =><\/span> (<\/span>X,<\/span> Y)<\/span> =<\/span> (<\/span>x,<\/span> y)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    Point<\/span> p1 =<\/span> new<\/span> Point<\/span>(<\/span>10<\/span>,<\/span> 20<\/span>)<\/span>;<\/span>
    \nPoint<\/span> p2 =<\/span> p1;<\/span> \/\/ \u590d\u5236\u6574\u4e2a\u7ed3\u6784\u4f53<\/span>
    \np2.<\/span>X =<\/span> 30<\/span>;<\/span> \/\/ \u4e0d\u5f71\u54cdp1<\/span>
    \nConsole.<\/span>WriteLine<\/span>(<\/span>p1.<\/span>X)<\/span>;<\/span> \/\/ \u8f93\u51fa10<\/span><\/p>\n

    \/\/ class – \u5f15\u7528\u8bed\u4e49<\/span>
    \npublic<\/span> class<\/span> Person<\/span>
    \n{<\/span>
    \n public<\/span> string<\/span><\/span> Name;<\/span>
    \n}<\/span><\/p>\n

    Person<\/span> person1 =<\/span> new<\/span> Person<\/span> {<\/span> Name =<\/span> "Alice"<\/span> }<\/span>;<\/span>
    \nPerson<\/span> person2 =<\/span> person1;<\/span> \/\/ \u53ea\u590d\u5236\u5f15\u7528<\/span>
    \nperson2.<\/span>Name =<\/span> "Bob"<\/span>;<\/span> \/\/ \u4fee\u6539\u7684\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61<\/span>
    \nConsole.<\/span>WriteLine<\/span>(<\/span>person1.<\/span>Name)<\/span>;<\/span> \/\/ \u8f93\u51faBob！<\/span><\/p>\n

    \u738b\u54e5：\u8fd8\u6709\u51e0\u4e2a\u8840\u7684\u6559\u8bad\u8981\u8bb0\u4f4f：<\/p>\n

  • \u4e0d\u8981\u5728\u5927struct\u91cc\u653e\u5f15\u7528\u7c7b\u578b（\u4f1a\u6709\u610f\u5916\u5171\u4eab）<\/li>\n
  • \u907f\u514d\u9891\u7e41\u88c5\u7bb1\u62c6\u7bb1<\/li>\n
  • struct\u9002\u5408\u5c0f\u578b\u7684\u3001\u903b\u8f91\u4e0a\u8868\u793a\u5355\u4e2a\u503c\u7684\u6570\u636e<\/li>\n

    \u5b57\u7b26\u4e32\u5904\u7406：\u5fd8\u8bb0C++\u7684\u4e60\u60ef<\/h3>\n

    \u5c0f\u674e：\u6211\u7ecf\u5e38\u7528==\u6bd4\u8f83\u5b57\u7b26\u4e32，\u6709\u4ec0\u4e48\u95ee\u9898\u5417？<\/p>\n

    \u738b\u54e5：\u5728C++\u91cc，\u4f60\u53ef\u80fd\u4e60\u60ef\u4e86\u7528strcmp\u3002\u5728C#\u91cc，\u5b57\u7b26\u4e32\u6bd4\u8f83\u6709\u51e0\u4e2a\u5751：<\/p>\n

    string<\/span><\/span> s1 =<\/span> "hello"<\/span>;<\/span>
    \nstring<\/span><\/span> s2 =<\/span> "HELLO"<\/span>;<\/span><\/p>\n

    \/\/ \u274c \u95ee\u98981：\u5927\u5c0f\u5199\u654f\u611f<\/span>
    \nif<\/span> (<\/span>s1 ==<\/span> s2)<\/span> \/\/ false，\u4f46\u4f60\u53ef\u80fd\u60f3\u8981true<\/span><\/p>\n

    \/\/ \u2705 \u6b63\u786e\u505a\u6cd5<\/span>
    \nif<\/span> (<\/span>string<\/span>.<\/span>Equals<\/span>(<\/span>s1,<\/span> s2,<\/span> StringComparison.<\/span>OrdinalIgnoreCase)<\/span>)<\/span><\/p>\n

    \/\/ \u274c \u95ee\u98982：\u6587\u5316\u654f\u611f\u6027<\/span>
    \nstring<\/span><\/span> s3 =<\/span> "stra\u00dfe"<\/span>;<\/span>
    \nstring<\/span><\/span> s4 =<\/span> "strasse"<\/span>;<\/span>
    \nif<\/span> (<\/span>s3 ==<\/span> s4)<\/span> \/\/ false（\u5fb7\u8bed\u6587\u5316\u4e2d\u76f8\u540c）<\/span><\/p>\n

    \/\/ \u2705 \u660e\u786e\u6307\u5b9a\u6bd4\u8f83\u89c4\u5219<\/span>
    \nif<\/span> (<\/span>string<\/span>.<\/span>Equals<\/span>(<\/span>s3,<\/span> s4,<\/span> StringComparison.<\/span>InvariantCulture)<\/span>)<\/span><\/p>\n

    \/\/ \u274c \u95ee\u98983：\u5b57\u7b26\u4e32\u4e0d\u53ef\u53d8<\/span>
    \nstring<\/span><\/span> text =<\/span> "hello"<\/span>;<\/span>
    \ntext.<\/span>ToUpper<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u8fd4\u56de\u65b0\u5b57\u7b26\u4e32，text\u4ecd\u7136\u662f"hello"<\/span><\/p>\n

    \/\/ \u2705 \u9700\u8981\u91cd\u65b0\u8d4b\u503c<\/span>
    \ntext =<\/span> text.<\/span>ToUpper<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \u738b\u54e5：\u8fd8\u6709\u4e00\u4e2a\u91cd\u8981\u5efa\u8bae：\u591a\u7528\u5b57\u7b26\u4e32\u63d2\u503c，\u5c11\u7528\u5b57\u7b26\u4e32\u8fde\u63a5\u3002<\/p>\n

    \/\/ \u274c \u6027\u80fd\u5dee<\/span>
    \nstring<\/span><\/span> message =<\/span> "Hello "<\/span> +<\/span> name +<\/span> ", you are "<\/span> +<\/span> age +<\/span> " years old"<\/span>;<\/span><\/p>\n

    \/\/ \u2705 \u6027\u80fd\u597d，\u53ef\u8bfb\u6027\u597d<\/span>
    \nstring<\/span><\/span> message =<\/span> $"Hello <\/span>{<\/span>name<\/span>}<\/span><\/span>, you are <\/span>{<\/span>age<\/span>}<\/span><\/span> years old"<\/span><\/span>;<\/span><\/p>\n

    \/\/ \u5927\u91cf\u62fc\u63a5\u7528StringBuilder<\/span>
    \nvar<\/span><\/span> sb =<\/span> new<\/span> StringBuilder<\/span>(<\/span>)<\/span>;<\/span>
    \nfor<\/span> (<\/span>int<\/span><\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 1000<\/span>;<\/span> i++<\/span>)<\/span>
    \n{<\/span>
    \n sb.<\/span>Append<\/span>(<\/span>i)<\/span>.<\/span>Append<\/span>(<\/span>", "<\/span>)<\/span>;<\/span>
    \n}<\/span>
    \nstring<\/span><\/span> result =<\/span> sb.<\/span>ToString<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \u96c6\u5408\u7c7b\u7684\u4f7f\u7528：\u5fd8\u8bb0\u624b\u52a8\u6570\u7ec4\u7ba1\u7406<\/h3>\n

    \u5c0f\u674e：\u6211\u603b\u60f3\u7528\u6570\u7ec4，\u7136\u540e\u81ea\u5df1\u7ba1\u7406\u5927\u5c0f\u3002<\/p>\n

    \u738b\u54e5：\u8fd9\u662fC++\u540e\u9057\u75c7！\u5728C#\u91cc，\u4f18\u5148\u4f7f\u7528\u6cdb\u578b\u96c6\u5408：<\/p>\n

    \/\/ \u274c C++\u601d\u7ef4<\/span>
    \nint<\/span>[<\/span>]<\/span><\/span> array =<\/span> new<\/span> int<\/span><\/span>[<\/span>10<\/span>]<\/span>;<\/span>
    \nint<\/span><\/span> count =<\/span> 0<\/span>;<\/span>
    \n\/\/ … \u624b\u52a8\u7ba1\u7406\u63d2\u5165\u3001\u5220\u9664<\/span><\/p>\n

    \/\/ \u2705 C#\u65b9\u5f0f<\/span>
    \nList<<\/span>int<\/span>><\/span><\/span> list =<\/span> new<\/span> List<<\/span>int<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span>
    \nlist.<\/span>Add<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
    \nlist.<\/span>Add<\/span>(<\/span>2<\/span>)<\/span>;<\/span>
    \nlist.<\/span>Remove<\/span>(<\/span>1<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u5b57\u5178\u7684\u4f7f\u7528<\/span>
    \nDictionary<<\/span>string<\/span>,<\/span> int<\/span>><\/span><\/span> dict =<\/span> new<\/span> Dictionary<<\/span>string<\/span>,<\/span> int<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span>
    \ndict[<\/span>"key"<\/span>]<\/span> =<\/span> 10<\/span>;<\/span><\/p>\n

    \/\/ \u5b89\u5168\u8bbf\u95ee<\/span>
    \nif<\/span> (<\/span>dict.<\/span>TryGetValue<\/span>(<\/span>"key"<\/span>,<\/span> out<\/span> int<\/span><\/span> value<\/span>)<\/span>)<\/span>
    \n{<\/span>
    \n \/\/ \u4f7f\u7528value<\/span>
    \n}<\/span><\/p>\n

    \/\/ \u96c6\u5408\u521d\u59cb\u5316\u5668（\u8bed\u6cd5\u7cd6）<\/span>
    \nvar<\/span><\/span> numbers =<\/span> new<\/span> List<<\/span>int<\/span>><\/span><\/span> {<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span> }<\/span>;<\/span>
    \nvar<\/span><\/span> person =<\/span> new<\/span> Person<\/span> {<\/span> Name =<\/span> "John"<\/span>,<\/span> Age =<\/span> 30<\/span> }<\/span>;<\/span><\/p>\n

    \u738b\u54e5：\u8bb0\u4f4f\u8fd9\u4e9b\u96c6\u5408\u4f7f\u7528\u6cd5\u5219：<\/p>\n

  • \u67e5\u8be2\u591a\u3001\u4fee\u6539\u5c11 \u2192 \u7528List<T><\/li>\n
  • \u5feb\u901f\u67e5\u627e \u2192 \u7528Dictionary<TKey, TValue><\/li>\n
  • \u9700\u8981\u6392\u5e8f \u2192 \u7528SortedDictionary\u6216SortedList<\/li>\n
  • \u552f\u4e00\u6027\u8981\u6c42 \u2192 \u7528HashSet<T><\/li>\n
  • \u5148\u8fdb\u5148\u51fa \u2192 \u7528Queue<T><\/li>\n
  • \u540e\u8fdb\u5148\u51fa \u2192 \u7528Stack<T><\/li>\n

    \u73b0\u4ee3C#\u7279\u6027：\u62e5\u62b1\u53d8\u5316<\/h3>\n

    \u5c0f\u674e：\u6211\u770b\u5230\u5f88\u591a=>\u3001var\u3001$""，\u8fd9\u4e9b\u9700\u8981\u90fd\u5b66\u5417？<\/p>\n

    \u738b\u54e5：\u5fc5\u987b\u5b66！\u8fd9\u4e9b\u90fd\u662f\u63d0\u9ad8\u751f\u4ea7\u529b\u7684\u5229\u5668\u3002\u6211\u7ed9\u4f60\u4e2a\u6e10\u8fdb\u5b66\u4e60\u8def\u5f84：<\/p>\n

    \u9636\u6bb51：\u7acb\u5373\u638c\u63e1\u7684<\/h4>\n

    \/\/ 1. var\u7c7b\u578b\u63a8\u65ad<\/span>
    \nvar<\/span><\/span> list =<\/span> new<\/span> List<<\/span>string<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span> \/\/ \u7f16\u8bd1\u5668\u77e5\u9053\u7c7b\u578b<\/span>
    \nvar<\/span><\/span> count =<\/span> 10<\/span>;<\/span> \/\/ \u77e5\u9053\u662fint<\/span><\/p>\n

    \/\/ 2. \u5c5e\u6027\u521d\u59cb\u5316\u5668<\/span>
    \npublic<\/span> class<\/span> Person<\/span>
    \n{<\/span>
    \n public<\/span> string<\/span><\/span> Name {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span> =<\/span> "Unknown"<\/span>;<\/span>
    \n public<\/span> int<\/span><\/span> Age {<\/span> get<\/span>;<\/span> set<\/span>;<\/span> }<\/span>
    \n}<\/span><\/p>\n

    \/\/ 3. \u5b57\u7b26\u4e32\u63d2\u503c<\/span>
    \nConsole.<\/span>WriteLine<\/span>(<\/span>$"Result: <\/span>{<\/span>Calculate<\/span>(<\/span>)<\/span><\/span>}<\/span><\/span>"<\/span><\/span>)<\/span>;<\/span><\/p>\n

    \/\/ 4. \u7a7a\u6761\u4ef6\u8fd0\u7b97\u7b26<\/span>
    \nstring<\/span><\/span> name =<\/span> person?.<\/span>Name ??<\/span> "Default"<\/span>;<\/span><\/p>\n

    \u9636\u6bb52：\u5c3d\u5feb\u5b66\u4e60\u7684<\/h4>\n

    \/\/ 1. \u6a21\u5f0f\u5339\u914d（C# 7+）<\/span>
    \nif<\/span> (<\/span>obj is<\/span> int<\/span><\/span> i &&<\/span> i ><\/span> 0<\/span>)<\/span>
    \n{<\/span>
    \n \/\/ \u76f4\u63a5\u4f7f\u7528i<\/span>
    \n}<\/span><\/p>\n

    \/\/ 2. switch\u8868\u8fbe\u5f0f<\/span>
    \nstring<\/span><\/span> result =<\/span> value<\/span> switch<\/span>
    \n{<\/span>
    \n 1<\/span> =><\/span> "One"<\/span>,<\/span>
    \n 2<\/span> =><\/span> "Two"<\/span>,<\/span>
    \n _ =><\/span> "Many"<\/span>
    \n}<\/span>;<\/span><\/p>\n

    \/\/ 3. \u8bb0\u5f55\u7c7b\u578b（C# 9+）<\/span>
    \npublic<\/span> record<\/span> Person<\/span>(<\/span>string<\/span><\/span> FirstName,<\/span> string<\/span><\/span> LastName)<\/span>;<\/span><\/p>\n

    \/\/ 4. with\u8868\u8fbe\u5f0f<\/span>
    \nvar<\/span><\/span> newPerson =<\/span> person with<\/span> {<\/span> LastName =<\/span> "Smith"<\/span> }<\/span>;<\/span><\/p>\n

    \u9636\u6bb53：\u6df1\u5ea6\u638c\u63e1\u7684<\/h4>\n

    \/\/ 1. \u53ef\u7a7a\u5f15\u7528\u7c7b\u578b（C# 8+）<\/span>
    \n#nullable<\/span> enable<\/span>
    \nstring<\/span>?<\/span><\/span> nullableString =<\/span> null<\/span>;<\/span> \/\/ \u660e\u786e\u53ef\u7a7a<\/span>
    \nstring<\/span><\/span> nonNullString =<\/span> "hello"<\/span>;<\/span> \/\/ \u660e\u786e\u975e\u7a7a<\/span><\/p>\n

    \/\/ 2. \u9876\u7ea7\u8bed\u53e5（C# 9+）<\/span>
    \n\/\/ \u4e0d\u9700\u8981\u5199namespace\u3001class\u3001Main\u65b9\u6cd5<\/span>
    \nConsole.<\/span>WriteLine<\/span>(<\/span>"Hello World!"<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ 3. \u6587\u4ef6\u8303\u56f4\u7684\u547d\u540d\u7a7a\u95f4（C# 10+）<\/span>
    \nnamespace<\/span> MyApp<\/span>;<\/span>
    \n\/\/ \u6574\u4e2a\u6587\u4ef6\u90fd\u5728\u8fd9\u4e2a\u547d\u540d\u7a7a\u95f4\u91cc<\/span><\/p>\n

    \u5f02\u6b65\u7f16\u7a0b：\u4ece\u56de\u8c03\u5730\u72f1\u5230\u5929\u5802<\/h3>\n

    \u5c0f\u674e：async\/await\u770b\u8d77\u6765\u50cf\u9ed1\u9b54\u6cd5，\u4e0d\u592a\u6562\u7528\u3002<\/p>\n

    \u738b\u54e5：\u8fd9\u662fC#\u6700\u68d2\u7684\u7279\u6027\u4e4b\u4e00！\u60f3\u8c61\u4e00\u4e0b，\u4f60\u4ece\u539f\u59cb\u793e\u4f1a\u5347\u7ea7\u5230\u4e86\u73b0\u4ee3\u793e\u4f1a：<\/p>\n

    \/\/ 😰 C++\/C#\u65e7\u65b9\u5f0f（\u56de\u8c03\u5730\u72f1）<\/span>
    \nclient.<\/span>GetData<\/span>(<\/span>url,<\/span> result =><\/span>
    \n{<\/span>
    \n ProcessData<\/span>(<\/span>result,<\/span> processed =><\/span>
    \n {<\/span>
    \n SaveData<\/span>(<\/span>processed,<\/span> saved =><\/span>
    \n {<\/span>
    \n UpdateUI<\/span>(<\/span>saved)<\/span>;<\/span>
    \n }<\/span>)<\/span>;<\/span>
    \n }<\/span>)<\/span>;<\/span>
    \n}<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ 😊 C# async\/await\u65b9\u5f0f<\/span>
    \npublic<\/span> async<\/span> Task<\/span> ProcessAsync<\/span>(<\/span>)<\/span>
    \n{<\/span>
    \n var<\/span><\/span> data =<\/span> await<\/span> client.<\/span>GetDataAsync<\/span>(<\/span>url)<\/span>;<\/span>
    \n var<\/span><\/span> processed =<\/span> await<\/span> ProcessDataAsync<\/span>(<\/span>data)<\/span>;<\/span>
    \n var<\/span><\/span> saved =<\/span> await<\/span> SaveDataAsync<\/span>(<\/span>processed)<\/span>;<\/span>
    \n UpdateUI<\/span>(<\/span>saved)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u738b\u54e5：\u8bb0\u4f4f\u8fd9\u4e9basync\/await\u9ec4\u91d1\u6cd5\u5219：<\/p>\n

  • async\u4f20\u67d3\u6027：\u4e00\u65e6\u7528\u4e86async，\u8c03\u7528\u94fe\u4e0a\u901a\u5e38\u90fd\u9700\u8981async<\/li>\n
  • \u547d\u540d\u89c4\u8303：\u5f02\u6b65\u65b9\u6cd5\u4ee5Async\u7ed3\u5c3e<\/li>\n
  • \u907f\u514dasync void：\u9664\u4e86\u4e8b\u4ef6\u5904\u7406\u5668，\u90fd\u7528async Task<\/li>\n
  • \u914d\u7f6e\u7b49\u5f85：ConfigureAwait(false)\u907f\u514d\u6b7b\u9501<\/li>\n
  • \u4e0d\u8981\u963b\u585e：\u7edd\u5bf9\u4e0d\u8981\u7528.Result\u6216.Wait()<\/li>\n

    \/\/ \u274c \u9519\u8bef\u505a\u6cd5<\/span>
    \npublic<\/span> string<\/span><\/span> GetData<\/span>(<\/span>)<\/span>
    \n{<\/span>
    \n return<\/span> GetDataAsync<\/span>(<\/span>)<\/span>.<\/span>Result;<\/span> \/\/ \u53ef\u80fd\u5bfc\u81f4\u6b7b\u9501！<\/span>
    \n}<\/span><\/p>\n

    \/\/ \u2705 \u6b63\u786e\u505a\u6cd5<\/span>
    \npublic<\/span> async<\/span> Task<<\/span>string<\/span>><\/span><\/span> GetDataAsync<\/span>(<\/span>)<\/span>
    \n{<\/span>
    \n return<\/span> await<\/span> httpClient.<\/span>GetStringAsync<\/span>(<\/span>url)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \/\/ \u2705 \u5728\u63a7\u5236\u53f0\u7a0b\u5e8f\u53ef\u4ee5\u8fd9\u6837<\/span>
    \npublic<\/span> static<\/span> async<\/span> Task<\/span> Main<\/span>(<\/span>string<\/span>[<\/span>]<\/span><\/span> args)<\/span>
    \n{<\/span>
    \n var<\/span><\/span> data =<\/span> await<\/span> GetDataAsync<\/span>(<\/span>)<\/span>;<\/span>
    \n Console.<\/span>WriteLine<\/span>(<\/span>data)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u8c03\u8bd5\u548c\u6392\u9519：\u65b0\u7684\u601d\u7ef4\u65b9\u5f0f<\/h3>\n

    \u5c0f\u674e：\u5728C#\u91cc\u8c03\u8bd5\u6709\u4ec0\u4e48\u4e0d\u540c？<\/p>\n

    \u738b\u54e5：\u8c03\u8bd5\u4f53\u9a8c\u66f4\u597d，\u4f46\u8981\u6ce8\u610f\u4e00\u4e9b\u65b0\u95ee\u9898：<\/p>\n

    1. \u5f02\u5e38\u800c\u4e0d\u662f\u9519\u8bef\u7801<\/h4>\n

    \/\/ \u274c C++\u601d\u7ef4<\/span>
    \nint<\/span><\/span> result =<\/span> DoOperation<\/span>(<\/span>)<\/span>;<\/span>
    \nif<\/span> (<\/span>result !=<\/span> SUCCESS)<\/span>
    \n{<\/span>
    \n \/\/ \u5904\u7406\u9519\u8bef<\/span>
    \n}<\/span><\/p>\n

    \/\/ \u2705 C#\u65b9\u5f0f<\/span>
    \ntry<\/span>
    \n{<\/span>
    \n await<\/span> DoOperationAsync<\/span>(<\/span>)<\/span>;<\/span>
    \n}<\/span>
    \ncatch<\/span> (<\/span>OperationCanceledException<\/span> ex)<\/span>
    \n{<\/span>
    \n \/\/ \u4efb\u52a1\u88ab\u53d6\u6d88<\/span>
    \n}<\/span>
    \ncatch<\/span> (<\/span>HttpRequestException<\/span> ex)<\/span>
    \n{<\/span>
    \n \/\/ \u7f51\u7edc\u9519\u8bef<\/span>
    \n}<\/span>
    \ncatch<\/span> (<\/span>Exception<\/span> ex)<\/span> \/\/ \u6700\u540e\u515c\u5e95<\/span>
    \n{<\/span>
    \n _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "\u64cd\u4f5c\u5931\u8d25"<\/span>)<\/span>;<\/span>
    \n throw<\/span>;<\/span> \/\/ \u91cd\u65b0\u629b\u51fa，\u4fdd\u7559\u5806\u6808<\/span>
    \n}<\/span><\/p>\n

    2. \u4f7f\u7528\u65e5\u5fd7\u800c\u4e0d\u662fprintf<\/h4>\n

    \/\/ \u7ed3\u6784\u5316\u65e5\u5fd7<\/span>
    \n_logger.<\/span>LogInformation<\/span>(<\/span>"\u7528\u6237 {UserId} \u6267\u884c\u4e86\u64cd\u4f5c {Action}"<\/span>,<\/span>
    \n userId,<\/span> actionName)<\/span>;<\/span><\/p>\n

    \/\/ \u5e26\u6709\u5f02\u5e38\u4fe1\u606f\u7684\u65e5\u5fd7<\/span>
    \ntry<\/span>
    \n{<\/span>
    \n \/\/ …<\/span>
    \n}<\/span>
    \ncatch<\/span> (<\/span>Exception<\/span> ex)<\/span>
    \n{<\/span>
    \n _logger.<\/span>LogError<\/span>(<\/span>ex,<\/span> "\u5904\u7406\u7528\u6237 {UserId} \u65f6\u51fa\u9519"<\/span>,<\/span> userId)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    3. \u5229\u7528Visual Studio\u7684\u5f3a\u5927\u529f\u80fd<\/h4>\n
      \n
    • \u6761\u4ef6\u65ad\u70b9：\u53f3\u952e\u65ad\u70b9\u8bbe\u7f6e\u6761\u4ef6<\/li>\n
    • \u6570\u636e\u65ad\u70b9：\u76d1\u89c6\u5bf9\u8c61\u53d8\u5316<\/li>\n
    • \u5373\u65f6\u7a97\u53e3：\u6267\u884c\u4efb\u610f\u4ee3\u7801<\/li>\n
    • \u8bca\u65ad\u5de5\u5177：\u5185\u5b58\u5206\u6790\u3001\u6027\u80fd\u5206\u6790<\/li>\n<\/ul>\n

      \u9879\u76ee\u7ba1\u7406：\u5fd8\u8bb0makefile<\/h3>\n

      \u5c0f\u674e：\u600e\u4e48\u7ba1\u7406C#\u9879\u76ee\u4f9d\u8d56？<\/p>\n

      \u738b\u54e5：\u5fd8\u8bb0makefile\u548c\u624b\u52a8\u62f7\u8d1ddll\u5427！C#\u6709NuGet：<\/p>\n

    • \u4f9d\u8d56\u7ba1\u7406：\u5728.csproj\u6587\u4ef6\u91cc\u5b9a\u4e49<\/li>\n
    • \u5305\u6062\u590d：\u81ea\u52a8\u4e0b\u8f7d\u4f9d\u8d56<\/li>\n
    • \u7248\u672c\u63a7\u5236：\u8bed\u4e49\u5316\u7248\u672c\u7ba1\u7406<\/li>\n

      <!– \u9879\u76ee\u6587\u4ef6\u793a\u4f8b –><\/span>
      \n<<\/span>Project<\/span> Sdk<\/span>=<\/span>"<\/span>Microsoft.NET.Sdk"<\/span><\/span>><\/span><\/span>
      \n <<\/span>PropertyGroup<\/span>><\/span><\/span>
      \n <<\/span>TargetFramework<\/span>><\/span><\/span>net6.0<\/<\/span>TargetFramework<\/span>><\/span><\/span>
      \n <<\/span>Nullable<\/span>><\/span><\/span>enable<\/<\/span>Nullable<\/span>><\/span><\/span>
      \n <\/<\/span>PropertyGroup<\/span>><\/span><\/span><\/p>\n

      <<\/span>ItemGroup<\/span>><\/span><\/span>
      \n <!– \u6dfb\u52a0NuGet\u5305 –><\/span>
      \n <<\/span>PackageReference<\/span> Include<\/span>=<\/span>"<\/span>Newtonsoft.Json"<\/span><\/span> Version<\/span>=<\/span>"<\/span>13.0.1"<\/span><\/span> \/><\/span><\/span>
      \n <<\/span>PackageReference<\/span> Include<\/span>=<\/span>"<\/span>AutoMapper"<\/span><\/span> Version<\/span>=<\/span>"<\/span>10.1.1"<\/span><\/span> \/><\/span><\/span>
      \n <\/<\/span>ItemGroup<\/span>><\/span><\/span>
      \n<\/<\/span>Project<\/span>><\/span><\/span><\/p>\n

      \u738b\u54e5：\u7ed9\u4f60\u7684\u65e5\u5e38\u68c0\u67e5\u6e05\u5355：<\/p>\n

        \n
      • \u4ee3\u7801\u4e2d\u662f\u5426\u8fd8\u6709public\u5b57\u6bb5？（\u5e94\u8be5\u7528\u5c5e\u6027）<\/li>\n
      • \u662f\u5426\u5b9e\u73b0\u4e86IDisposable？（\u5982\u679c\u6709\u975e\u6258\u7ba1\u8d44\u6e90）<\/li>\n
      • \u5f02\u6b65\u65b9\u6cd5\u662f\u5426\u4ee5Async\u7ed3\u5c3e？<\/li>\n
      • \u662f\u5426\u5904\u7406\u4e86\u53ef\u80fd\u7684null？<\/li>\n
      • \u662f\u5426\u4f7f\u7528\u4e86\u5408\u9002\u7684\u96c6\u5408\u7c7b\u578b？<\/li>\n
      • \u5b57\u7b26\u4e32\u6bd4\u8f83\u662f\u5426\u6307\u5b9a\u4e86\u6bd4\u8f83\u89c4\u5219？<\/li>\n
      • \u662f\u5426\u907f\u514d\u4e86\u88c5\u7bb1\u62c6\u7bb1？<\/li>\n
      • \u662f\u5426\u7528\u4e86using\u7ba1\u7406\u8d44\u6e90？<\/li>\n<\/ul>\n

        \u6700\u540e\u7684\u5fe0\u544a<\/h3>\n

        \u738b\u54e5：\u5c0f\u674e，\u8f6c\u578b\u6700\u5927\u7684\u969c\u788d\u4e0d\u662f\u6280\u672f，\u800c\u662f\u601d\u7ef4\u4e60\u60ef\u3002\u4f60\u9700\u8981：<\/p>\n

      • \u4ece\u63a7\u5236\u72c2\u5230\u4fe1\u4efb\u8005：\u76f8\u4fe1GC，\u76f8\u4fe1\u6846\u67b6<\/li>\n
      • \u4ece\u624b\u52a8\u6321\u5230\u81ea\u52a8\u6321：\u8ba9\u5de5\u5177\u4e3a\u4f60\u5de5\u4f5c<\/li>\n
      • \u4ece\u5fae\u89c2\u5230\u5b8f\u89c2：\u5173\u6ce8\u4e1a\u52a1\u903b\u8f91\u800c\u4e0d\u662f\u5185\u5b58\u5e03\u5c40<\/li>\n
      • \u4ece\u590d\u6742\u5230\u7b80\u6d01：\u5229\u7528\u73b0\u4ee3\u8bed\u8a00\u7279\u6027<\/li>\n

        \u5c0f\u674e：\u611f\u89c9\u8981\u5b66\u7684\u597d\u591a\u554a！<\/p>\n

        \u738b\u54e5：\u522b\u6025，\u6211\u7ed9\u4f60\u4e00\u4e2a30\u5929\u5b66\u4e60\u8ba1\u5212：<\/p>\n

        \u7b2c1\u5468：\u638c\u63e1\u57fa\u7840<\/p>\n

          \n
        • \u503c\u7c7b\u578bvs\u5f15\u7528\u7c7b\u578b<\/li>\n
        • \u5c5e\u6027vs\u5b57\u6bb5<\/li>\n
        • \u57fa\u672c\u96c6\u5408\u4f7f\u7528<\/li>\n<\/ul>\n

          \u7b2c2\u5468：\u6df1\u5165\u6838\u5fc3<\/p>\n

            \n
          • async\/await<\/li>\n
          • LINQ\u57fa\u7840<\/li>\n
          • \u5f02\u5e38\u5904\u7406<\/li>\n<\/ul>\n

            \u7b2c3\u5468：\u73b0\u4ee3\u7279\u6027<\/p>\n

              \n
            • \u6a21\u5f0f\u5339\u914d<\/li>\n
            • \u8bb0\u5f55\u7c7b\u578b<\/li>\n
            • \u53ef\u7a7a\u5f15\u7528\u7c7b\u578b<\/li>\n<\/ul>\n

              \u7b2c4\u5468：\u751f\u6001\u7cfb\u7edf<\/p>\n

                \n
              • Entity Framework<\/li>\n
              • ASP.NET Core\u57fa\u7840<\/li>\n
              • \u4f9d\u8d56\u6ce8\u5165<\/li>\n<\/ul>\n

                \u8bb0\u4f4f，\u4e0d\u8981\u8bd5\u56fe\u4e00\u6b21\u6027\u638c\u63e1\u6240\u6709\u4e1c\u897f\u3002\u5199\u4ee3\u7801\u65f6\u9047\u5230\u95ee\u9898\u518d\u67e5，\u5b9e\u8df5\u4e2d\u5b66\u4e60\u6700\u5feb\u3002\u6709\u95ee\u9898\u968f\u65f6\u95ee\u6211！<\/p>\n

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