讲解Python中的标识运算符

概述 下表列出了所有Python语言支持的标识运算符。示例：试试下面的例子就明白了所有Python编程语言提供的标识运算符：

 下表列出了所有Python语言支持的标识运算符。

示例：

试试下面的例子就明白了所有Python编程语言提供的标识运算符：

#!/usr/bin/pythona = 20b = 20if ( a is b ):  print "line 1 - a and b have same IDentity"else:  print "line 1 - a and b do not have same IDentity"if ( ID(a) == ID(b) ):  print "line 2 - a and b have same IDentity"else:  print "line 2 - a and b do not have same IDentity"b = 30if ( a is b ):  print "line 3 - a and b have same IDentity"else:  print "line 3 - a and b do not have same IDentity"if ( a is not b ):  print "line 4 - a and b do not have same IDentity"else:  print "line 4 - a and b have same IDentity"

当执行上面的程序它会产生以下结果：

line 1 - a and b have same IDentityline 2 - a and b have same IDentityline 3 - a and b do not have same IDentityline 4 - a and b do not have same IDentity

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