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（TOP100 热门题目） 题目介绍： 739. Daily Temperatures Given a list of daily temperatures T, return a list such that, for each day in the input, tells you how many days you would have to wait until a warmer temp...

python 中判断当前是否是一个文本时可用isalnum()方法 可用来剔除空格 >>> str='abc bcd' >>> for i in str: ... print(i.isalnum()) 结果： True True True False True True True 剔除标点 >>> str='abc！@#￥%~b...