题目: 请实现一个函数,将一个字符串中的空格替换成“%20”.例如,当字符串为We Are Happy.则经过替换之后的字符串为We%20Are%20Happy. 1.使用python自带的replace方法: # -*- coding:utf-8 -*- # -*- python3.6.6 -*- # -*- JluTiger -*- # -*- 替换空格 -*- class Solution: # s 源字符串 def replaceSpace(self, s): # write code