SOURCE

let str = 'qweqweqweqweqw3@qq.net我我';

function getInfo(str) {
    try {
        const payInfo = matchInfo(str);
        log('payInfo1' + payInfo)
        return payInfo
    } catch (error) {
        console.log(error);
    }
}



//解析账号信息字符串  返回一个对象
function matchInfo(str) {
    const nameRegex = /[\u4E00-\u9FFF]{2,4}/;
    const emailRegex = /\w+(-+.\w+)*@\w+(-.\w+)*.\w+(-.\w+)*/g;
    const accountRegex = /\d{11}/g;

    const nameMatch = str.match(nameRegex);
    const accountMatch = str.includes('@') ? str.match(emailRegex) : str.match(accountRegex);
    // if (nameMatch === null) {
    //     throw new Error('未获取到名字');
    // }

    // if (accountMatch === null) {
    //     throw new Error('未获取到账号');
    // }

    const info = {
        name: nameMatch[0] || '',
        account: accountMatch[0] || ''
    };
    log(info)
    return info;
}

// getInfo(str);

function log(a) {
    return console.log(a)
}

const name = document.querySelector('.name')
const account = document.querySelector('.account')
const input = document.querySelector('.input')

// input.addEventListener("focus", function () {
//     (async () => {


//         try {
//             const text = await navigator.clipboard.readText();
//             str = text
//             input.value = text
//             let info = getInfo(str)
//             // console.log('info' + info.name);
//             name.value = info.name
//             account.value = info.account

//         } catch (e) {
//             console.log(e.message)
//         }

//     })();
// })

input.addEventListener("input", function () {


    str = input.value

    let info = getInfo(str)
    if(info.name){

    }
    console.log('info' + info.name);
    name.value = info.name
    account.value = info.account

    // try {


    // } catch (e) {

    //     // console.log(e.message)
    //     if (e.message == '未获取到名字') {
    //         log('@@@')
    //          console.log(e.message)
    //         // name.value = ''
    //     } else if (e.message == '未获取到账号') {
    //          log('###')
    //           console.log(e.message)
    //         // account.value = ''
    //     }

    // }


})

姓名：<input class="name" type="text"> <br>
账号：<input class="account" type="text">
<input class="input" type="text">

.input{
width: 300px;
height: 100px;
}