100秒以上的就报：
statusCode: 400，
errMsg: "uploadFile:ok"
data:"<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>400 Bad Request</title>
</head><body>
<h1>Bad Request</h1>
<p>Your browser sent a request that this server could not understand.<br />
</p>
</body></html>
"
这是为何呀。
400 报错是服务端问题，你需要自行查询服务端代码