上传图片一直报bad request错误？
使用wx.uploadfile这个函数一直会显示错误400，错误信息bad request后端接不到消息 <html><head> <title>400 Bad Request</title> </head><body> <h1>Bad Request</h1> <per>ERR_BAD_REQUEST: POST /index HTTP/1.1 Content-Type: multipart/form-data; boundary=--------------------------892716975123147825149432 Referer: https://servicewechat.com/wx4089d18935b7eb0a/devtools/page-frame.html User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_1 like Mac OS X) AppleWebKit/603.1.3 (KHTML, like Gecko) Version/10.0 Mobile/14E304 Safari/602.1 wechatdevtools/1.06.2210141 MicroMessenger/8.0.5 Language/zh_CN webview/ host: 6491m26d93.yicp.fun content-length: 801932 Connection: keep-alive </per></body></html>
