{"id":3526,"date":"2025-04-13T13:52:01","date_gmt":"2025-04-13T05:52:01","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3526"},"modified":"2025-04-13T13:52:01","modified_gmt":"2025-04-13T05:52:01","slug":"c-%e8%bf%90%e7%ae%97%e7%ac%a6%e9%87%8d%e8%bd%bd%ef%bc%88operator-overloading%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/04\/13\/c-%e8%bf%90%e7%ae%97%e7%ac%a6%e9%87%8d%e8%bd%bd%ef%bc%88operator-overloading%ef%bc%89\/","title":{"rendered":"C# \u8fd0\u7b97\u7b26\u91cd\u8f7d\uff08Operator Overloading\uff09"},"content":{"rendered":"\n<p>\u672c\u7ae0\u8282\u662f\u5173\u4e8e <strong>C# \u8fd0\u7b97\u7b26\u91cd\u8f7d\uff08Operator Overloading\uff09<\/strong> \u7684\u5168\u9762\u3001\u8be6\u7ec6\u3001\u4e13\u4e1a\u89e3\u91ca\uff0c\u5305\u542b\u8bed\u6cd5\u673a\u5236\u3001\u9002\u7528\u89c4\u5219\u3001\u793a\u4f8b\u4ee3\u7801\u3001\u4f7f\u7528\u573a\u666f\u3001\u6ce8\u610f\u4e8b\u9879\u4ee5\u53ca\u6743\u5a01\u5b98\u65b9\u6587\u6863\u94fe\u63a5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u4ec0\u4e48\u662f\u8fd0\u7b97\u7b26\u91cd\u8f7d\uff1f<\/h2>\n\n\n\n<p>\u5728 C# \u4e2d\uff0c\u8fd0\u7b97\u7b26\uff08\u5982 <code>+<\/code>\u3001<code>-<\/code>\u3001<code>*<\/code>\u3001<code>==<\/code> \u7b49\uff09\u53ef\u4ee5\u88ab <strong>\u91cd\u8f7d<\/strong>\uff0c\u4f7f\u5176\u80fd\u5728\u81ea\u5b9a\u4e49\u7c7b\u578b\uff08\u5982\u7c7b\u6216\u7ed3\u6784\u4f53\uff09\u4e0a\u5b9e\u73b0\u7279\u5b9a\u7684\u8fd0\u7b97\u884c\u4e3a\u3002<\/p>\n\n\n\n<p>\ud83d\udd0d \u76ee\u7684\uff1a\u589e\u5f3a\u81ea\u5b9a\u4e49\u7c7b\u578b\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7528\u6027\uff0c\u6a21\u4eff\u5185\u7f6e\u7c7b\u578b\u64cd\u4f5c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u652f\u6301\u91cd\u8f7d\u7684\u8fd0\u7b97\u7b26<\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u662f C# \u4e2d <strong>\u5141\u8bb8\u91cd\u8f7d<\/strong> \u7684\u8fd0\u7b97\u7b26\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714\ufe0f \u4e00\u5143\u8fd0\u7b97\u7b26\uff08Unary\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>+<\/code>\u3001<code>-<\/code>\u3001<code>!<\/code>\u3001<code>~<\/code>\u3001<code>++<\/code>\u3001<code>--<\/code>\u3001<code>true<\/code>\u3001<code>false<\/code><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2714\ufe0f \u4e8c\u5143\u8fd0\u7b97\u7b26\uff08Binary\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>+<\/code>\u3001<code>-<\/code>\u3001<code>*<\/code>\u3001<code>\/<\/code>\u3001<code>%<\/code>\u3001<code>&amp;<\/code>\u3001<code>|<\/code>\u3001<code>^<\/code>\u3001<code>&lt;&lt;<\/code>\u3001<code>>><\/code>\u3001<code>==<\/code>\u3001<code>!=<\/code>\u3001<code>><\/code>\u3001<code>&lt;<\/code>\u3001<code>>=<\/code>\u3001<code>&lt;=<\/code><\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u274c \u4e0d\u53ef\u91cd\u8f7d\uff1a<code>=<\/code>\u3001<code>&amp;&amp;<\/code>\u3001<code>||<\/code>\u3001<code>[]<\/code>\uff08\u7d22\u5f15\u5668\u53ef\u901a\u8fc7\u5c5e\u6027\u5b9e\u73b0\uff09\u3001<code>()<\/code>\uff08\u8c03\u7528\uff09\u3001<code>.<\/code>\u3001<code>?:<\/code>\u3001<code>new<\/code>\u3001<code>is<\/code>\u3001<code>as<\/code><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u8fd0\u7b97\u7b26\u91cd\u8f7d\u8bed\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u7528\u8bed\u6cd5\u683c\u5f0f\uff1a<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>public static \u8fd4\u56de\u7c7b\u578b operator \u8fd0\u7b97\u7b26(\u53c2\u6570\u5217\u8868) {\n    \/\/ \u5b9e\u73b0\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u793a\u4f8b\uff1a\u91cd\u8f7d <code>+<\/code> \u8fd0\u7b97\u7b26<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Vector {\n    public int X { get; set; }\n    public int Y { get; set; }\n\n    public Vector(int x, int y) {\n        X = x;\n        Y = y;\n    }\n\n    public static Vector operator +(Vector a, Vector b) {\n        return new Vector(a.X + b.X, a.Y + b.Y);\n    }\n\n    public override string ToString() =&gt; $\"({X}, {Y})\";\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f7f\u7528\uff1a<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>var v1 = new Vector(2, 3);\nvar v2 = new Vector(4, 1);\nvar result = v1 + v2;  \/\/ \u8c03\u7528 operator + \u65b9\u6cd5\nConsole.WriteLine(result); \/\/ \u8f93\u51fa: (6, 4)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u793a\u4f8b\uff1a\u91cd\u8f7d <code>==<\/code> \u548c <code>!=<\/code> \u8fd0\u7b97\u7b26\uff08\u5fc5\u987b\u914d\u5408 <code>Equals<\/code> \u4e0e <code>GetHashCode<\/code>\uff09<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Point {\n    public int X, Y;\n    public Point(int x, int y) {\n        X = x; Y = y;\n    }\n\n    public static bool operator ==(Point a, Point b) {\n        if (ReferenceEquals(a, b)) return true;\n        if (a is null || b is null) return false;\n        return a.X == b.X &amp;&amp; a.Y == b.Y;\n    }\n\n    public static bool operator !=(Point a, Point b) =&gt; !(a == b);\n\n    public override bool Equals(object obj) =&gt;\n        obj is Point p &amp;&amp; this == p;\n\n    public override int GetHashCode() =&gt;\n        HashCode.Combine(X, Y);\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u793a\u4f8b\uff1a\u91cd\u8f7d <code>++<\/code> \u8fd0\u7b97\u7b26<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Counter {\n    public int Value { get; set; }\n\n    public static Counter operator ++(Counter c) {\n        c.Value++;\n        return c;\n    }\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. \u5b9e\u6218\u5e94\u7528\u573a\u666f<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u573a\u666f<\/th><th>\u8fd0\u7b97\u7b26<\/th><\/tr><\/thead><tbody><tr><td>\u6570\u5b66\u7c7b\u5e93\uff08\u5982 Vector\u3001Matrix\uff09<\/td><td><code>+<\/code>, <code>-<\/code>, <code>*<\/code>, <code>\/<\/code><\/td><\/tr><tr><td>\u5355\u4f4d\u8f6c\u6362\uff08\u5982\u91cd\u91cf\u3001\u957f\u5ea6\uff09<\/td><td>\u6bd4\u8f83\u8fd0\u7b97\u7b26 <code>&lt;<\/code>, <code>&gt;<\/code><\/td><\/tr><tr><td>\u8ba1\u6570\u5668\u7c7b<\/td><td><code>++<\/code>, <code>--<\/code><\/td><\/tr><tr><td>\u81ea\u5b9a\u4e49\u6570\u636e\u7ed3\u6784\uff08\u5982 Complex, Money\uff09<\/td><td><code>==<\/code>, <code>!=<\/code>, <code>+<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">8. \u6ce8\u610f\u4e8b\u9879\u4e0e\u9650\u5236<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9879\u76ee<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u5fc5\u987b\u662f <code>static<\/code><\/td><td>\u6240\u6709\u8fd0\u7b97\u7b26\u91cd\u8f7d\u65b9\u6cd5\u90fd\u5fc5\u987b\u662f <code>public static<\/code><\/td><\/tr><tr><td>\u81f3\u5c11\u6709\u4e00\u4e2a\u64cd\u4f5c\u6570\u662f\u5f53\u524d\u7c7b<\/td><td>\u9632\u6b62\u5bf9\u7cfb\u7edf\u7c7b\u578b\u91cd\u8f7d<\/td><\/tr><tr><td>\u5efa\u8bae\u6210\u5bf9\u5b9e\u73b0<\/td><td>\u5982\u91cd\u8f7d <code>==<\/code> \u5c31\u5fc5\u987b\u91cd\u8f7d <code>!=<\/code><\/td><\/tr><tr><td>\u91cd\u5199 <code>Equals<\/code> \u4e0e <code>GetHashCode<\/code><\/td><td>\u5f53\u91cd\u8f7d\u6bd4\u8f83\u8fd0\u7b97\u7b26\u65f6\uff0c\u63a8\u8350\u4e00\u5e76\u5b9e\u73b0<\/td><\/tr><tr><td>\u8c28\u614e\u4f7f\u7528\u91cd\u8f7d<\/td><td>\u8fc7\u5ea6\u91cd\u8f7d\u4f1a\u4f7f\u4ee3\u7801\u53ef\u8bfb\u6027\u4e0b\u964d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">9. \u5b98\u65b9\u6587\u6863\u4e0e\u6743\u5a01\u8d44\u6599<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/csharp\/language-reference\/operators\/operator-overloading\">Operator Overloading &#8211; Microsoft Learn<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/csharp\/language-reference\/operators\/\">C# Operators &#8211; Microsoft Docs<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/csharp\/language-reference\/operators\/equality-operators\">Equality Operators == and != &#8211; Microsoft<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">10. \u603b\u7ed3\u8868\u683c<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u652f\u6301\u7c7b\u578b<\/td><td>\u7c7b\uff08class\uff09\u3001\u7ed3\u6784\u4f53\uff08struct\uff09<\/td><\/tr><tr><td>\u5173\u952e\u5b57<\/td><td><code>operator<\/code><\/td><\/tr><tr><td>\u8fd4\u56de\u7c7b\u578b<\/td><td>\u901a\u5e38\u4e3a\u7c7b\u7c7b\u578b\u6216\u5e03\u5c14\u503c<\/td><\/tr><tr><td>\u4e0e\u91cd\u8f7d\u914d\u5957<\/td><td><code>Equals()<\/code> \u548c <code>GetHashCode()<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\uff0c\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u7ae0\u8282\u662f\u5173\u4e8e C# \u8fd0\u7b97\u7b26\u91cd\u8f7d\uff08Operator Overloading\uff09 \u7684\u5168\u9762\u3001\u8be6\u7ec6\u3001\u4e13\u4e1a\u89e3\u91ca\uff0c\u5305\u542b\u8bed\u6cd5\u673a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3527,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[],"class_list":["post-3526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-c-"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=3526"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3526\/revisions"}],"predecessor-version":[{"id":3528,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3526\/revisions\/3528"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3527"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}