从键盘读取多行作为输入

For my code, i had to read multiple lines from keyboard. The code i have here does the job. here is the code:

对于我的代码,我必须从键盘读取多行。我在这里的代码完成了这项工作。这是代码:

#include <iostream>

using namespace std;

int main()
{

string input;
string line;

cout<< "Enter the input line" << endl;

while (getline(cin, line))
{
    if (line == "^D")
        break;

    input += line;
}

 cout<< "The input entered was: "<<endl;
 cout<< input<< endl;

}

The output i get after running this.

运行后得到的输出。

Enter the input line
Hello
World !
The input entered was: 
HelloWorld !

The problem: As you see, the getline does give a white space when printing Hello World. How to make sure it gets printed as "Hello World !" rather than "HelloWorld !" This happens when there is n newline. It is concatenated with the previous line string and printed.

问题:如你所见,getline确实在打印Hello World时给出了空格。如何确保它被打印为“Hello World!”而不是“HelloWorld!”当有新换行符时会发生这种情况。它与前一行字符串连接并打印。

1 个解决方案

#1

Try this,

while (getline(cin, line)) {
    if (line == "^D")
        break;

    input += " " + line;
}