vue+element上传附件大小限制，个数限制

//回调 
onSuccess: function (response, file, fileList) {
                if (response.data) {
                   if(file.size>5242880){
                     this.$message({
                        message: '每个文件不超过5M',
                        type: 'warning'
                    });
                    return false
                  }
                  if(this.ruleForm.fileAccessorys.length>=10){
                    this.$message({
                        message: '附件个数不超10个',
                        type: 'warning'
                    })
                    return false
                  }
})