原生微信小程序转换uni-app 遇到的问题

Vue.mixin({
	methods: {
		setData(obj) {
		      let that = this;
		      let keys = [];
		      let val, data;
		      Object.keys(obj).forEach(function (key) {
		        keys = key.split(‘.‘);
		        val = obj[key];
		        data = that.$data;
		        keys.forEach(function (key2, index) {
		          if (index + 1 == keys.length) {
		            that.$set(data, key2, val);
		          } else {
		            if (!data[key2]) {
		              that.$set(data, key2, {});
		            }
		          }
		          data = data[key2];
		        })
		      });
		    }
	}
});