今晚，哦不，是昨晚了，想删除空行时，给for语句和列表坑得好惨!！！
一般来说，删除字符串的空行有以下几种常见的方法~(然而我竟然想不出来)
假设我们要把下面的字符串之间的空行给去掉
# coding: utf-8 txt = """
This is a nice day!
Nice to meet you! How are you? """
# 按换行符分割为列表
list = txt.split("\n")
print list
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方法1: 用 for ... in range()
for eachline in range(list):
# 从上面的输出可知，只要把列表里面的空白元素 "" 给删掉就行了
list.remove("")