1. uni-app代码2. 后端代码exports.avatar = (req,res)=>{ const avatar ={ avatar:req.file.filename } const info = req.body; Object.assign(info,avatar) let sql = "update users set avatar=?,Ssex=?,Sage=?,direction=? where Susername=?;"; let data = [info.avatar,info.Ssex,info.Sage,info.direction,info.Susername] db.base(sql,data,(result) => { if(result.affectedRows >= 1){ res.send({ flag:1, data:data }) }else{ return res.send({flag:2}); } }) } 头像: