新增：直接播放QQ音乐排行榜音乐

src/renderer/utils/music/kg/leaderboard.js

@@ -68,17 +68,17 @@ export default {
     limit: /pagesize: '(\d+)',/,
     listData: /global\.features = (\[.+\]);/,
   },
-  _cancelIndex: null,
+  _requestObj: null,
   _cancelPromiseCancelFn: null,
   getData(url) {
-    if (this._cancelIndex != null) {
-      cancelHttp(this._cancelIndex)
+    if (this._requestObj != null) {
+      cancelHttp(this._requestObj)
       this._cancelPromiseCancelFn(new Error('取消http请求'))
     }
     return new Promise((resolve, reject) => {
       this._cancelPromiseCancelFn = reject
-      this._cancelIndex = httpGet(url, (err, resp, body) => {
-        this._cancelIndex = null
+      this._requestObj = httpGet(url, (err, resp, body) => {
+        this._requestObj = null
         this._cancelPromiseCancelFn = null
         if (err) {
           console.log(err)