修改

src/views/signup/SignUpLevel.vue

@@ -795,7 +795,7 @@ export default {
                             type: item.type,
                             songName: item.songName,
                             songAuthor: item.songAuthor,
-                            uploadUrl: item.fileUrlList
+                            uploadUrl: item.fileUrlList.join(',')
                         })
                     })
                 } else {  // 自选
@@ -822,7 +822,7 @@ export default {
                             type: item.type,
                             songName: item.songName,
                             songAuthor: item.songAuthor,
-                            uploadUrl: item.fileUrlList
+                            uploadUrl: item.fileUrlList.join(',')
                         })
                     })
                 } else {
@@ -841,7 +841,6 @@ export default {
                         })
                     })
                 }
-
                 let form = this.form,
                     formText = this.formText
                 let params = {