fix(mp): mp-alipay uni.createSelectorQuery fields 报错问题，目前与app/微信还是有差异,一次只能传入1个参数,多个参数需要再次select

src/platforms/mp-alipay/service/api/index.js

 import {
+  isFn,
   hasOwn
 } from 'uni-shared'
 
@@ -32,3 +33,58 @@ export function startGyroscope (params) {
     errMsg: 'startGyroscope:ok'
   })
 }
+
+function createExecCallback (execCallback) {
+  return function wrapperExecCallback (res) {
+    this.actions.forEach((action, index) => {
+      (action._$callbacks || []).forEach(callback => {
+        callback(res[index])
+      })
+    })
+    execCallback(res)
+  }
+}
+
+function addCallback (callback) {
+  if (isFn(callback)) {
+    const action = this.actions[this.actions.length - 1]
+    if (action) {
+      (action._$callbacks || (action._$callbacks = [])).push(callback)
+    }
+  }
+}
+
+export function createSelectorQuery () {
+  const query = my.createSelectorQuery()
+
+  const oldExec = query.exec
+  const oldScrollOffset = query.scrollOffset
+  const oldBoundingClientRect = query.boundingClientRect
+  query.exec = function exec (callback) {
+    return oldExec.call(this, createExecCallback(callback).bind(this))
+  }
+  query.scrollOffset = function scrollOffset (callback) {
+    const ret = oldScrollOffset.call(this)
+    addCallback.call(this, callback)
+    return ret
+  }
+  query.boundingClientRect = function boundingClientRect (callback) {
+    const ret = oldBoundingClientRect.call(this)
+    addCallback.call(this, callback)
+    return ret
+  }
+
+  if (!query.fields) {
+    query.fields = function ({ rect, size, scrollOffset } = {}, callback) {
+      if (rect || size) {
+        this.boundingClientRect()
+      }
+      if (scrollOffset) {
+        this.scrollOffset()
+      }
+      addCallback.call(this, callback)
+      return this
+    }
+  }
+  return query
+}