Question

我对Eclipse控制台有问题，似乎我的输入没有正确传递。这是一个新的Hello World C ++项目。 Eclipse控制台无限循环，但是从Windows命令行或Cygwin终端运行可以正常工作。我已经尝试过使用控制台编码了。

int main() {
    int times;
    while (true) {
        cout << ">> " << flush;

        // Get input from the command line
        string input;
        getline(cin, input);

        cout << "This is loop number " << times << endl;
        times++;

        if (input == "exit") {
            cout << "Exiting" << endl;
            return 0;
        }
    }
}

Eclipse控制台：

>> exit
This is loop number 1
>> exit
This is loop number 2
>> exit
This is loop number 3
>> exit
This is loop number 4
>> exit
This is loop number 5
>> exit
This is loop number 6
>> exit
This is loop number 7
>>

Windows命令行：

C:\Users\Andy>eclipse-workspace\stacktest\Debug\stacktest.exe
>> exit
This is loop number 1
Exiting

编辑

感谢@Armin，看来Eclipse在输入的末尾插入了新行。

>> hello
This is loop number 0


Size of input6   Input: 'hello
'
Char: h   int representaion: 104
Char: e   int representaion: 101
Char: l   int representaion: 108
Char: l   int representaion: 108
Char: o   int representaion: 111
Char: 
   int representaion: 13

Answer 1

有趣。在我的机器上它可以工作。

所以它不起作用的唯一原因是：“退出”不等于输入。输入的末尾可能有CR或LF或CR / LF或其他字符。或者，我们有不同的字符类型。

请运行以下测试程序：

include <iostream>
#include <iomanip>
#include <string>

int main() 
{
    int times{ 0 };
    while (true) {
        std::cout << ">> " << std::flush;

        // Get input from the command line
        std::string input{};
        std::getline(std::cin, input);

        std::cout << "This is loop number " << times << std::endl;
        times++;

        // Test Begin ----------------------------------------
        std::cout << "\n\nSize of input" << input.size() << "   Input: '" << input << "'\n";
        for (char c : input) {
            std::cout << "Char: " << c << "   int representaion: " << static_cast<unsigned int>(c)<< '\n';
        }
        // Test End----------------------------------------

        if (input == "exit") {
            std::cout << "Exiting" << std::endl;
            return 0;
        }
    }
}

我很好奇，结果会怎样。。

Eclipse控制台无法正确解析输入

1 个答案: