下表列出了所有python语言支持的成员运算符。
例如：
试试下面的例子就明白了所有的python编程语言提供会员运算符：
#!/usr/bin/python
a = 10
b = 20
list = [1, 2, 3, 4, 5 ];
if ( a in list ):
print “line 1 – a is available in the given list”
else:
print “line 1 – a is not available in the given list”
if ( b not in list ):
print “line 2 – b is not available in the given list”
else:
print “line 2 – b is available in the given list”
a = 2
if ( a in list ):
print “line 3 – a is available in the given list”
else:
print “line 3 – a is not available in the given list”
当执行上面的程序它会产生以下结果：
line 1 – a is not available in the given list
line 2 – b is not available in the given list
line 3 – a is available in the given list