16进制Unicode编码与中文相互转换

let toUnicode = function (data) {
   
    if (!data) {
        alert('请输入文字')
        return
    }
    let str = ''
    for (let i = 0; i < data.length; i ++) {
        str += '\\u' + parseInt(data[i].charCodeAt()).toString(16);
    }
    return str
}

let toHanZi =