一、題目描述
請實現一個函數，將一個字符串中的每個空格替換成“%20”。例如，當字符串爲We Are Happy.則經過替換之後的字符串爲We%20Are%20Happy。
二、解題代碼
1、python
# -*- coding:utf-8 -*-
class Solution:
# s 源字符串
def replaceSpace(self, s):
a_str = s
result=""
for char in a_str:
if(char==' '):
result+="%20"
else:
result+=char
return result
2、java
public class Solution {
public String replaceSpace(StringBuffer str) {
return str.toString().replaceAll("\\s", "%20");
}
}
3、C#
class Solution
{
public string replaceSpace(string str)
{
return str.Replace(" ", "%20");
}
}
4、PHP
<?php
function replaceSpace($str)
{
return str_replace(" ","%20",$str);
}
5、JavaScript
function replaceSpace(str)
{
return str.replace(/\s/g, "%20");
}