PapaParse同异步问题解决

在获取cav文件解析时由于异步原因导致无法获取

使用async与Promise对象即可解决

async function revealParse(path, fileName) {
    let stuAnswer = await parseFile(`Files/${path}/${fileName}`);
    console.log(JSON.stringify(stuAnswer))
}

//解析CSV
function parseFile(path) {
    return new Promise(function (resolve) {
        Papa.parse(`${path}`, {         //path为文件URL
            download: true,
            complete: function (results) {
                resolve(results.data);
            }
        });
    })
}