问题描述
我正在编写代码以在node.js环境中创建在线c ++编译器.使用spawn函数创建了一个子进程，该子进程将编译代码并执行并将输出发送回用户.但是我需要将输入发送到正在运行的c ++程序.我使用了child.stdin.write('data');发送数据给孩子，但我认为程序中的cin没有收到输入.
请帮助我将输入发送到正在运行的c ++代码.
谢谢.
I am writing code to create an online c++ compiler in node.js environment.Using spawn function i created a child process which will compile the code and execute it and send the output back to the user.But i need to send input to the running c++ program . I used child.stdin.write('data');for sending data to child but i think cin in the program is not receiving the input .
Please help me to send the input to the running c++ code.
Thanks.
推荐答案
1.使用输入数据创建文件.
2.创建ReadStream打开输入文件.
3.将ReadStream和childprocess.stdin放在管道上.
1.Create a file with input data.
2.Create a ReadStream opening input file.
3.Pipe the ReadStream with childprocess.stdin.
file=fs.createReadStream('input.txt',{encoding:'utf8'});
file.pipe(childprocess.stdin);
这对我有用.
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