得到"removeAttr is not a function“EN最近看企鹅群 ，发现li的value有个‘好玩’的默认“规则”，搜索一番发现是Property 与Attribute 的缘故，无奈最初不清楚，最后搜到如下一篇文章，算是了解了点。现偷偷运输过来，供大家欣赏（最后附有原文以及其他”可能”有帮助的）。jQuery学习笔记之DOM操作、
问获取"removeattr is not a function“异常EN只有绝望的赌鬼才肯把全部所有作孤注的一掷。一个商人如...
The checked attribute is only for setting the initial state of the checkbox, per the spec. It seems that browsers are ignoring this, but I still recommend using .prop('checked', true) instead of .attr. However, there is no difference in behavior with jQuery edge, so this is not an iss...