使用getch后如何在另一个字符串的末尾连接一个字符串
How to concatenate a string at the end of another string after using getch
对于此代码:
#include <iostream>
#include <string>
#include <conio.h>
int main()
{
std::string a;
char c{};
while (c != '\r')
{
c = getch();
a += c;
}
a += "xyz";
std::cout << a;
}
Input: 12345
, then Enter key
Output: xyz45
如何阻止这种情况发生?
Desired output: 12345xyz
您需要避免在字符串中添加 \r
字符,例如:
while ((c = getch()) != '\r')
a += c;
对于此代码:
#include <iostream>
#include <string>
#include <conio.h>
int main()
{
std::string a;
char c{};
while (c != '\r')
{
c = getch();
a += c;
}
a += "xyz";
std::cout << a;
}
Input:
12345
, then Enter key
Output:
xyz45
如何阻止这种情况发生?
Desired output:
12345xyz
您需要避免在字符串中添加 \r
字符,例如:
while ((c = getch()) != '\r')
a += c;