diff --git a/index.js b/index.js
index 6f7393f..85eff09 100644
--- a/index.js
+++ b/index.js
@@ -129,7 +129,7 @@ module.exports = {
   async callBackend({ backend = this.BACKEND, httpMethod = 'POST', apiVersion = 'api', apiWho, apiTodo, apiWhat = {} }) {
     console.log('👇 < BackendRequest > ', { apiWho, apiTodo, apiWhat }, ' < /BackendRequest > 👇')
     let result = {}
-    if (backend === 'CLOUD') {
+    if (backend === 'UNICLOUD') {
       let { /* success, header, requestedId, */ result: resultCloud = {} } = await uniCloud
         .callFunction({
           name: apiWho,
@@ -182,7 +182,7 @@ module.exports = {
     return result
   },
 
-  async pickupFile({
+  async pickupFile2Server({
     mediaType = 'image',
     count = 1,
     sizeType = ['original', 'compressed'],
@@ -192,11 +192,12 @@ module.exports = {
     formData = {},
     name = 'file',
   } = {}) {
-    if (uni.getStorageSync('_passtoken')) {
-      header._passtoken = uni.getStorageSync('_passtoken')
-    } else {
-      return [{ _ERROR: 'USER_OFFLINE', errMsg: 'offline user cannot upload files' }, null]
-    }
+    // 有的管理后台不需要登录就允许上传，例如 cmctoy。因此不要在这里依赖登录状态。
+    // if (uni.getStorageSync('_passtoken')) {
+    //   header._passtoken = uni.getStorageSync('_passtoken')
+    // } else {
+    //   return [{ _ERROR: 'USER_OFFLINE', errMsg: 'offline user cannot upload files' }, null]
+    // }
 
     let filePath
     if (mediaType === 'image') {
@@ -216,15 +217,24 @@ module.exports = {
       }
 
       uni.showLoading()
-      let [errorUpload, response] = await uni.uploadFile({ url: this.makeServerUrl(url), filePath, name, header, formData })
+      let [errorUpload, { data, statusCode } = {}] = await uni.uploadFile({ url: this.makeServerUrl(url), filePath, name, header, formData })
+      // url 用后台 Multer 处理返回 { _state, filename, originalname, mimetype, size, path }, 
+      // uni.uploadFile 存在 data 里返回
       uni.hideLoading()
 
-      if (response && response.data) {
+      if (typeof(data)==='string') {
         try {
-          response.data = JSON.parse(response.data)
+          data = JSON.parse(data)
         } catch (exception) {}
       }
-      return [errorUpload, response]
+//      return [errorUpload, response]
+      if (data) {
+        return { _state: 'SUCCESS', file: data }
+      }else {
+        return { _state: 'CLIENT_FAIL_UPLOAD_FILE', errorUpload }
+      }
+    }else {
+      return { _state: 'CLIENT_FAIL_CHOOSE_FILE' }
     }
 
     return [{ _ERROR: 'USER_CANCELED' }, null]
@@ -265,7 +275,7 @@ module.exports = {
       // 20200915测试，阿里云支持上传 *.mov 了。
       if (!/\.(mp4|mov)$/i.test(cloudPath)) cloudPath = cloudPath + '.mp4'
     } else {
-      return { _state: 'UNKNOWN_MEDIA_TYPE' }
+      return { _state: 'CLIENT_FAIL_UNKNOWN_MEDIA_TYPE' }
     }
 
     if (process.env.NODE_ENV === 'development') {
@@ -290,7 +300,21 @@ module.exports = {
         return { _state: 'SUCCESS', fileID, requestId }
       }
     }
-    return { _state: 'FAIL' }
+    return { _state: 'CLIENT_FAIL_CHOOSE_FILE' }
+  },
+
+  async pickupFile({ 
+    backend = this.BACKEND,
+    mediaType = 'image', count = 1, sizeType = ['original', 'compressed'], sourceType = ['album', 'camera'], maxDuration,
+    url, header = {}, formData = {}, name = 'file',
+  }) {
+    if (backend==='UNICLOUD'){
+      const resultCloud = await this.pickupFile2Cloud({mediaType, count, sizeType, sourceType, maxDuration })
+      return Object.assign(resultCloud, { fileUrl: resultCloud.fileID })
+    }else if (backend==='SERVER' && url){
+      const resultServer = await this.pickupFile2Server({mediaType, count, sizeType, sourceType, maxDuration, url, header, formData, name})
+      return Object.assign(resultServer, {fileUrl: resultServer.file ? this.makeBgUrl(resultServer.file.filename) : undefined})
+    }
   },
 
   openUrl(url) {