如何预防老年斑,红太阳的陨落 下载,qq强聊
下表列出了所有python语言支持的比较操作符。假设变量a持有10和变量b持有20,则:
例如:
试试下面的例子就明白了所有的python编程语言提供的比较操作符:
#!/usr/bin/python a = 21 b = 10 c = 0 if ( a == b ): print "line 1 - a is equal to b" else: print "line 1 - a is not equal to b" if ( a != b ): print "line 2 - a is not equal to b" else: print "line 2 - a is equal to b" if ( a <> b ): print "line 3 - a is not equal to b" else: print "line 3 - a is equal to b" if ( a < b ): print "line 4 - a is less than b" else: print "line 4 - a is not less than b" if ( a > b ): print "line 5 - a is greater than b" else: print "line 5 - a is not greater than b" a = 5; b = 20; if ( a <= b ): print "line 6 - a is either less than or equal to b" else: print "line 6 - a is neither less than nor equal to b" if ( b >= a ): print "line 7 - b is either greater than or equal to b" else: print "line 7 - b is neither greater than nor equal to b"
当执行上面的程序它会产生以下结果:
line 1 - a is not equal to b line 2 - a is not equal to b line 3 - a is not equal to b line 4 - a is not less than b line 5 - a is greater than b line 6 - a is either less than or equal to b line 7 - b is either greater than or equal to b
如对本文有疑问,请在下面进行留言讨论,广大热心网友会与你互动!! 点击进行留言回复
Python 实现将numpy中的nan和inf,nan替换成对应的均值
python爬虫把url链接编码成gbk2312格式过程解析
网友评论