{"id":108090,"date":"2020-05-30T23:16:33","date_gmt":"2020-05-30T15:16:33","guid":{"rendered":"http:\/\/4563.org\/?p=108090"},"modified":"2020-05-30T23:16:33","modified_gmt":"2020-05-30T15:16:33","slug":"%e5%85%b3%e4%ba%8e-python3-%e9%87%8d%e8%bd%bd%e8%bf%90%e7%ae%97%e7%ac%a6-%e4%b8%8e-%e5%bc%95%e7%94%a8","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=108090","title":{"rendered":"\u5173\u4e8e Python3 \u91cd\u8f7d\u8fd0\u7b97\u7b26 \u4e0e \u5f15\u7528"},"content":{"rendered":"
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\u5173\u4e8e Python3 \u91cd\u8f7d\u8fd0\u7b97\u7b26 \u4e0e \u5f15\u7528 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : johnnyleaf <\/span> <\/i> 1<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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\u4e8b\u60c5\u662f\u8fd9\u6837\u7684\uff1a<\/h2>\n

\u5047\u8bbe\u6211\u6709\u8fd9\u6837\u4e00\u4e2a\u9700\u6c42\uff1a<\/h3>\n
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\u7ed9\u5b9a\u4e09\u70b9\uff1aA \u3001B \u3001C \uff1b\u5176\u4e2d A \u4e0e B \u5750\u6807\u5df2\u77e5\uff0cC \u70b9\u5750\u6807 = A \u70b9 + B \u70b9, \u5f53 A \u70b9\u5750\u6807\u53d1\u751f\u53d8\u5316\u65f6\uff0cC \u70b9\u4e5f\u5e94\u8be5\u53d1\u751f\u53d8\u5316\u3002<\/p>\n<\/blockquote>\n

\u6211\u7684\u4ee3\u7801\u5982\u4e0b<\/h3>\n

\u9996\u5148\u6211\u5b9a\u4e49\u4e00\u4e2a Point \u7c7b<\/h4>\n
class Point:          def __init__(self, coordinate:tuple):         self.x = coordinate[0]         self.y = coordinate[1]          def __repr__(self):         return \"(%.2f, %.2f)\" % (self.x, self.y)              def __add__(self, other:Point):         if isinstance(other, Point):             x = self.x + other.x             y = self.y + other.y             return Point(coordinate=(x,y))  <\/code><\/pre>\n
\u7136\u540e\u5b9a\u4e49 A \u4e0e B \u7684\u5750\u6807 \u4ee5\u53ca C \u7684\u5173\u7cfb\uff1a<\/h4>\n
A = Point((1,1)) B = Point((4,1)) C = A + B <\/code><\/pre>\n
\u6b64\u65f6 C \u70b9\u7684\u5750\u6807\u5e94\u8be5\u4e3a\uff1a(5,2)<\/h4>\n
\u4f46\u6211\u8fdb\u884c\u5982\u4e0b\u64cd\u4f5c\u540e<\/h4>\n
A.x=5 <\/code><\/pre>\n
C \u70b9\u7684\u5750\u6807\u5e76\u6ca1\u6709\u53d1\u751f\u53d8\u5316…\u539f\u56e0\u6211\u77e5\u9053\uff0c\u56e0\u4e3a__add__\u7ed9 C \u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u65b0\u7684 Point \u5bf9\u8c61\u3002<\/h4>\n
\u6211\u60f3\u8bf7\u6559\u5404\u4f4d\uff01\u5047\u5982\u8bf4 \u4ee3\u7801\u91cc\u6211\u53ea\u80fd\u7528\u91cd\u8f7d\u8fd0\u7b97\u7b26\u6765\u5b8c\u6210 +-*\/ \u6211\u8be5\u5982\u4f55\u80fd\u8ba9 C \u70b9\u7684\u5750\u6807\u6839\u636e A \u70b9 \/B \u70b9\u7684\u5750\u6807\u53d8\u5316\u800c\u53d8\u5316\u5462\uff1f<\/h4>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (38<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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     \u8cc7\u6df1\u5927\u4f6c : sarvatathagata <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0d\u77e5\u9053 python \u6709\u4ec0\u4e48\u673a\u5236\u505a\u5230\u8fd9\u4e2a\u3002\u3002\u3002\u7136\u800c\u8fd9\u4e0d\u5c31\u662f Qt \u4e2d\u7684\u4fe1\u53f7 \/\u69fd\u5417                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : aijam <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 C \u91cc\u5b58 A, B \u7684 reference                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : dayeye2006199 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u96be\u4e0d\u6210\u8981\u8fd9\u6837<\/p>\n
    “`python
    class SumOfPoints:
     def __init__(self, left, right):
     self.left = left
     self.right = right<\/p>\n
     @property
     def x(self):
     return self.left.x + self.right.x<\/p>\n
     @property
     def y(self):
     return self.left.y + self.right.y<\/p>\n
    class Point:<\/p>\n
     def __init__(self, coordinate:tuple):
     self.x = coordinate[0]
     self.y = coordinate[1]<\/p>\n
     def __repr__(self):
     return “(%.2f, %.2f)” % (self.x, self.y)<\/p>\n
     def __add__(self, other):
     if isinstance(other, Point):
     x = self.x + other.x
     y = self.y + other.y
     return SumOfPoints(self, other)
    “`<\/p>\n
    “`python
    A = Point((1,1))
    B = Point((4,1))
    C = A + B<\/p>\n
    assert C.x==5<\/p>\n
    A.x = 5<\/p>\n
    assert C.x==9
    “`                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : johnnyleaf <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @sarvatathagata \u662f\u7684\uff0c\u5176\u5b9e\u4e5f\u53ef\u4ee5\u6839\u636e \u76d1\u542c\u8005\u6a21\u5f0f\u6765\u8bbe\u8ba1\u8fd9\u4e2a\u6a21\u5757\uff0c\u4f46\u662f\u5bf9\u4e8e\u76d1\u542c\u8005\u6a21\u5f0f\u672c\u8eab\u6211\u638c\u63e1\u7684\u5e76\u4e0d\u7262\u56fa\u3002\u6240\u4ee5\u5728\u60f3\u6709\u6ca1\u6709\u5176\u4ed6\u7684\u529e\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u540c\u6837\u7684\u529f\u80fd\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : johnnyleaf <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @dayeye2006199 \u54c8\u54c8\uff5e\u611f\u8c22\u611f\u8c22 \u8fd9\u4e2a\u529e\u6cd5\u4e0d\u9519\uff0c\u4f46\u662f \u5047\u5982\u73b0\u5b9e\u9700\u6c42\u7565\u590d\u6742 \u53ef\u80fd\u51fa\u73b0
    > A=(1, 1) B = (4, 1), C=(5, 3), D = C – B + A 
    \u4ee5\u4e0a\u4ee3\u7801\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a\u5e73\u884c\u56db\u8fb9\u5f62\uff0c\u5982\u679c\u6309\u7167\u60a8\u7684\u601d\u8def\uff0c\u6211\u53ef\u80fd\u9700\u8981\u5efa\u7acb SumOfPoints \u4e0e Point \u4e4b\u95f4\u7684__add__ \u4e0e __ sub__ \u7b49\u64cd\u4f5c\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : 1iuh <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4f60\u7528\u91cd\u8f7d\u8fd0\u7b97\u7b26\u6765\u505a\u8fd9\u4e8b\u7279\u522b\u4e0d\u5408\u7406\uff0c \u4f60\u8fd9\u6837\u5199\u611f\u89c9\u5c31\u7c7b\u4f3c a = 1, b =1 c = a +b \u8fd9\u65f6 c = 2\uff0c \u7136\u540e a = a +2, c \u7684\u503c\u5c31\u53d8\u6210\u4e86 3 \u3002<\/p>\n
    \u5b9e\u73b0\u662f\u53ef\u4ee5\u5b9e\u73b0\uff0c \u628a Point \u7684\u7c7b\u6269\u5c55\u4e00\u4e0b\uff0cPoint A \u548c Point B \u76f8\u52a0\u65f6\uff0c\u5728\u65b0\u7684\u5bf9\u8c61\u91cc\u653e\u5165 Point A \u548c Point B \u3002\u65b0\u5bf9\u8c61\u7684 x = self._pointa.x + self.pointb.x                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : johnnyleaf <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @1iuh \u5176\u5b9e\u6211\u6709\u540c\u611f\uff0c\u6211\u4e5f\u662f\u5728\u601d\u8def\u63a2\u7d22\u9636\u6bb5                                                             <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : gwy15 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 https:\/\/gist.github.com\/gwy15\/2149af5dfc325cfe95eccf23e4997365