摘要: var a = undefined; ->false var a = 0; ->false var a = 0.0; ->false var a = NaN; ->false var a = ""; ->false var a = null; ->false... 阅读全文
posted @ 2018-11-04 08:43 喵星人~ 阅读(3026) 评论(0) 推荐(0) 编辑