// 面试题5:替换空格
// 题目:请实现一个函数,把字符串中的每个空格替换成"%20"。例如输入“We are happy.”,
// 则输出“We%20are%20happy.”。
#include<iostream>
#include<cstring>
#include<string>
using namespace std;
void replaceSpace(int length)
{
char *OrigString = new char[length];
cout << "请输入字符串长度为" << length << "的元素:";
cin.getline(OrigString, length); //cin.getline()接受一个字符串,可以接收空格并输出
cout << "原始字符串为:" << OrigString << endl;
string NewString;//空格被替换后的新字符串的长度
for (int j = 0; j < length; j++)
{
if (OrigString[j] == ' ')
{
NewString = NewString + "%20";
continue;
}
else
{
NewString += OrigString[j];
}
}
cout << "空格被替换后的新字符串为:" << NewString << endl;
delete[]OrigString;
OrigString = NULL;
return;
}
int main()
{
replaceSpace(10);
return 0;
}
测试结果如下:
请输入字符串长度为14的元素:we are happy.
原始字符串为:we are happy.
空格被替换后的新字符串为:we%20are%20happy.
请按任意键继续. . .