详谈python中冒号与逗号的区别

注意if/while/for等(或函数定义)语句在结尾处包含一个冒号——我们通过它告诉python下面跟着一个语句块。

--------------冒号的用法

if guess == number:print 'Congratulations, you guessed it.' # New block starts hereprint "(but you do not win any prizes!)" # New block ends hereelif guess < color="#ff0000">:print 'No, it is a little higher than that' # Another block# You can do whatever you want in a block ...else:print 'No, it is a little lower than that' --------------def printMax(x, y): '''输出最大的2个数.2个数值必需是整数.'''x = int(x) # convert to integers,if possibley = int(y)if x > y: print x, 'is maximum'else:print y, 'is maximum'========逗号的特殊用途for item in shoplist:print item,

我们在print语句的结尾使用了一个 逗号 来消除每个print语句自动打印的换行符。这样做有点难看，不过确实简单有效。

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