public async Task <IActionResult> Post([FromFile] UserFile file)
{
//if (file == null || !file.IsValid)
// return new JsonResult(new { code = 500, message = "不允许上传的文件类型" });
string newFile = string.Empty;
if (file != null)
{
newFile = await file.SaveAsChunks("images");
}
return(new JsonResult(new {
code = 0,
message = "成功",
url = newFile
}));
}