总结Python中逻辑运算符的使用

下表列出了所有python/' target='_blank'>python语言支持的逻辑运算符。假设变量a持有10和变量b持有20，则：

示例:

试试下面的例子就明白了所有的Python编程语言提供了逻辑运算符：

#!/usr/bin/pythona = 10b = 20c = 0if ( a and b ):  print "Line 1 - a and b are true"else:  print "Line 1 - Either a is not true or b is not true"if ( a or b ):  print "Line 2 - Either a is true or b is true or both are true"else:  print "Line 2 - Neither a is true nor b is true"a = 0if ( a and b ):  print "Line 3 - a and b are true"else:  print "Line 3 - Either a is not true or b is not true"if ( a or b ):  print "Line 4 - Either a is true or b is true or both are true"else:  print "Line 4 - Neither a is true nor b is true"if not( a and b ):  print "Line 5 - Either a is not true or b is not true"else:  print "Line 5 - a and b are true"

当执行上面的程序它会产生以下结果：

Line 1 - a and b are trueLine 2 - Either a is true or b is true or both are trueLine 3 - Either a is not true or b is not trueLine 4 - Either a is true or b is true or both are trueLine 5 - Either a is not true or b is not true