正在跳转至 https://github.com/yeyuqiudeng/reading-zepto/blob/456627c2e8199ac1d043af51177d6159fddd39bc/src/%E8%AF%BBZepto%E6%BA%90%E7%A0%81%E4%B9%8B%E5%86%85%E9%83%A8%E6%96%B9%E6%B3%95.md#isplainobject