题解 | #替换空格#

# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param s string字符串 
# @return string字符串
#
class Solution:
    def replaceSpace(self , s: str) -> str:
        # write code here
        s_all = ''
        for i in range(len(s)):
            if s[i] == ' ':
                s_all += '%20'
            else:
                s_all += s[i]
        return s_all