发布时间:2019-08-27 07:59:30编辑:auto阅读(1672)
#python if 用法 a = input("how old are you: ") if a > 100: print "你死了" elif a > 60: print "你老了" elif a>18: print "你成年了" elif a>0: print "你还小" else: print "你不存在"
how old are you: 66 你老了 >>> ================================ RESTART ================================ >>> how old are you: 665 你死了 >>> ================================ RESTART ================================ >>> how old are you: 2 你还小 >>> ================================ RESTART ================================ >>> how old are you: 25 你成年了 >>> ================================ RESTART ================================ >>> how old are you: -5 Traceback (most recent call last): File "C:/Python27/print", line 1, in <module> a = input("how old are you: ") File "<string>", line 1 -5 ^ SyntaxError: invalid syntax >>> ================================ RESTART ================================ >>> how old are you: 0. 你不存在 >>> ================================ RESTART ================================ >>> how old are you: 0 你不存在
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