更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/core-js/modules/es.parse-float.js

@@ -0,0 +1,9 @@
+'use strict';
+var $ = require('../internals/export');
+var $parseFloat = require('../internals/number-parse-float');
+
+// `parseFloat` method
+// https://tc39.es/ecma262/#sec-parsefloat-string
+$({ global: true, forced: parseFloat !== $parseFloat }, {
+  parseFloat: $parseFloat
+});