【Web前端问题】想写一个通过http请求下载多个视频文件的函数，结果总是多了好几请求，请问问题在哪里

Z时代
2024-01-10
分类：技术分享

写

    function loadsavesomets(urls,filenames,callback) {
        var dirPath = dir+'/';
        var filename = '';
        var i=0
        var url = '';
        function loadsaveonets() {
            if (i>=urls.length) {
                return false
            }
            console.log('开始下载第' + i + '个视频');
            url = urls[i];
            filename = filenames[i]+'.ts';
            var timer
            var writeStream
            var req
            //开始计时
            timer = setTimeout(function() {
                console.log('第' + i + '个视频下载超时，重新开始下载')
                req.abort()
                writeStream.end()
                loadsaveonets()
            }, 2*60*1000);
            if (i>=urls.length) {
                return false
            }else{
                writeStream = fs.createWriteStream(dirPath + filename);
                req = superagent.get(url)
                req.pipe(writeStream);
                writeStream.on('close', function() {
                    console.log('第' + i + '个视频下载完成')
                    //清除计时
                    clearTimeout(timer)
                    i++
                    if (i==urls.length) {
                        console.log('所有ts下载完成')
                        return false
                    }else if (i>urls.length) {
                        return false
                    }else{
                        loadsaveonets()
                    }
                })
            }
        }
        loadsaveonets()
    }