代碼如下，調(diào)用 下面函數(shù) 生成隨機(jī)數(shù)。我想生成玩就終止進(jìn)程，但調(diào)用終止進(jìn)程方法，并不能終止。是我用的方式不對(duì)嗎。沒(méi)調(diào)用一次就開(kāi)個(gè)進(jìn)程。cpu 都要爆表了。
我機(jī)器是mac

const child_process = require('child_process');

async function generStr(){

    let childProcess="";
    
    const randomStr = await new Promise((resolve, reject) => {
    childProcess = child_process.exec("LC_CTYPE=C tr -dc A-Za-z0-9 < /dev/urandom | head -c 20");
    childProcess.stdout.on('data', (data) => {
      resolve(data.toString())
    });
    });
    
    console.log(process.platform)
    
    childProcess.kill()
    
    process.exit(0)
    
    childProcess.stdout.on('close', (code, signal) => {
    console.log(`子進(jìn)程收到信號(hào) ${signal} ${code}而終止`);
    });

    return randomStr;
}