{"id":3759,"date":"2025-05-29T23:52:38","date_gmt":"2025-05-29T15:52:38","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3759"},"modified":"2025-05-29T23:52:38","modified_gmt":"2025-05-29T15:52:38","slug":"%e5%9c%a8-python-%e4%b8%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%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\/05\/29\/%e5%9c%a8-python-%e4%b8%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e8%bf%90%e7%ae%97%e7%ac%a6%e9%87%8d%e8%bd%bd%ef%bc%88operator-overloading%ef%bc%89\/","title":{"rendered":"\u5728 Python \u4e2d\uff0c\u5982\u4f55\u5b9e\u73b0\u8fd0\u7b97\u7b26\u91cd\u8f7d\uff08Operator Overloading\uff09"},"content":{"rendered":"\n

\u5728 Python \u4e2d\uff0c**\u8fd0\u7b97\u7b26\u91cd\u8f7d\uff08Operator Overloading\uff09**\u5141\u8bb8\u4f60\u4e3a\u81ea\u5b9a\u4e49\u7c7b\u5b9a\u4e49\u8fd0\u7b97\u7b26\u7684\u884c\u4e3a\uff0c\u6bd4\u5982 +<\/code>\u3001-<\/code>\u3001==<\/code>\u3001<<\/code> \u7b49\u3002\u5b83\u901a\u8fc7 \u7279\u6b8a\u65b9\u6cd5\uff08\u9b54\u672f\u65b9\u6cd5\uff09<\/strong> \u5b9e\u73b0\uff0c\u5982 __add__()<\/code>\u3001__eq__()<\/code> \u7b49\u3002<\/p>\n\n\n\n

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\u4e00\u3001\u57fa\u672c\u793a\u4f8b\uff1a\u91cd\u8f7d +<\/code> \u8fd0\u7b97\u7b26<\/h2>\n\n\n\n

\u4ee5\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684\u4e8c\u7ef4\u5411\u91cf\u7c7b Vector2D<\/code> \u4e3a\u4f8b\uff1a<\/p>\n\n\n\n

class Vector2D:\n    def __init__(self, x, y):\n        self.x = x\n        self.y = y\n\n    # \u91cd\u8f7d + \u8fd0\u7b97\u7b26\n    def __add__(self, other):\n        return Vector2D(self.x + other.x, self.y + other.y)\n\n    def __repr__(self):\n        return f\"Vector2D({self.x}, {self.y})\"\n\n# \u6d4b\u8bd5\nv1 = Vector2D(1, 2)\nv2 = Vector2D(3, 4)\nprint(v1 + v2)  # \u8f93\u51fa\uff1aVector2D(4, 6)<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e8c\u3001\u5e38\u7528\u8fd0\u7b97\u7b26\u53ca\u5176\u9b54\u672f\u65b9\u6cd5\u5bf9\u7167\u8868<\/h2>\n\n\n\n
\u8fd0\u7b97\u7b26<\/th>\u9b54\u672f\u65b9\u6cd5<\/th>\u63cf\u8ff0<\/th><\/tr><\/thead>
+<\/code><\/td>__add__(self, other)<\/code><\/td>\u52a0\u6cd5<\/td><\/tr>
-<\/code><\/td>__sub__<\/code><\/td>\u51cf\u6cd5<\/td><\/tr>
*<\/code><\/td>__mul__<\/code><\/td>\u4e58\u6cd5<\/td><\/tr>
\/<\/code><\/td>__truediv__<\/code><\/td>\u9664\u6cd5\uff08\u771f\u9664\u6cd5\uff09<\/td><\/tr>
\/\/<\/code><\/td>__floordiv__<\/code><\/td>\u5730\u677f\u9664<\/td><\/tr>
%<\/code><\/td>__mod__<\/code><\/td>\u53d6\u6a21<\/td><\/tr>
**<\/code><\/td>__pow__<\/code><\/td>\u5e42\u8fd0\u7b97<\/td><\/tr>
==<\/code><\/td>__eq__<\/code><\/td>\u7b49\u4e8e<\/td><\/tr>
!=<\/code><\/td>__ne__<\/code><\/td>\u4e0d\u7b49\u4e8e<\/td><\/tr>
<<\/code><\/td>__lt__<\/code><\/td>\u5c0f\u4e8e<\/td><\/tr>
<=<\/code><\/td>__le__<\/code><\/td>\u5c0f\u4e8e\u7b49\u4e8e<\/td><\/tr>
><\/code><\/td>__gt__<\/code><\/td>\u5927\u4e8e<\/td><\/tr>
>=<\/code><\/td>__ge__<\/code><\/td>\u5927\u4e8e\u7b49\u4e8e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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\u4e09\u3001\u8fdb\u4e00\u6b65\u793a\u4f8b\uff1a\u91cd\u8f7d ==<\/code> \u548c <<\/code><\/h2>\n\n\n\n
class Student:\n    def __init__(self, name, score):\n        self.name = name\n        self.score = score\n\n    def __eq__(self, other):\n        return self.score == other.score\n\n    def __lt__(self, other):\n        return self.score < other.score\n\n# \u6d4b\u8bd5\ns1 = Student(\"Alice\", 90)\ns2 = Student(\"Bob\", 85)\nprint(s1 == s2)  # False\nprint(s1 < s2)   # False<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u56db\u3001\u6ce8\u610f\u4e8b\u9879<\/h2>\n\n\n\n
    \n
  1. \u7c7b\u578b\u68c0\u67e5\u662f\u4e2a\u597d\u4e60\u60ef<\/strong>\uff1a<\/li>\n<\/ol>\n\n\n\n
       def __add__(self, other):\n       if isinstance(other, Vector2D):\n           return Vector2D(self.x + other.x, self.y + other.y)\n       return NotImplemented<\/code><\/pre>\n\n\n\n
      \n
    1. \u5e94\u59cb\u7ec8\u5b9e\u73b0\u6210\u5bf9\u7684\u65b9\u6cd5<\/strong>\uff08\u5982\u5b9e\u73b0\u4e86 __eq__<\/code>\uff0c\u6700\u597d\u4e5f\u5b9e\u73b0 __ne__<\/code>\uff09<\/li>\n\n\n\n
    2. \u4e0d\u53ef\u6ee5\u7528\u91cd\u8f7d<\/strong>\uff1a\u907f\u514d\u8fc7\u5ea6\u91cd\u8f7d\u9020\u6210\u4ee3\u7801\u96be\u4ee5\u7406\u89e3\u3002<\/li>\n<\/ol>\n\n\n\n
      \n\n\n\n
      \u4e94\u3001\u51fa\u7ad9\u53c2\u8003\u94fe\u63a5<\/h2>\n\n\n\n