javascript - target="_blank"与target="blank"原来是有区别的啊！
target="_blank"在新标签打开链接
一直以为target="blank"是错误的写法，没想到这样写还有效果啊：
当标签已经打开了，点击第二次就不会再打开新标签了，而是刷新之前的那个标签啊，怎么这么神奇，特异功能啊！
去查了一下，target标准属性没有blank这个值啊，真是奇怪。
希望大神指点一下哈
PS：好像现在HTML5有种类似的功能，像网易音乐那样点击链接不会刷新页面，不会中断当前正在播放的音乐，还能变动URL，不知道这个效果是神马原理
回复内容：
target="_blank"在新标签打开链接
一直以为target="blank"是错误的写法，没想到这样写还有效果啊：
当标签已经打开了，点击第二次就不会再打开新标签了，而是刷新之前的那个标签啊，怎么这么神奇，特异功能啊！
去查了一下，target标准属性没有blank这个值啊，真是奇怪。
希望大神指点一下哈
PS：好像现在HTML5有种类似的功能，像网易音乐那样点击链接不会刷新页面，不会中断当前正在播放的音乐，还能变动URL，不知道这个效果是神马原理
_blank 是打开个新页面
blank 是打开个页面，并命名为为 blank，当存在 blank页面的时候，则跟新页面（这里换成其他非_blank,_top 等）也是可以的
target属性设置非_blank、_top这些预定义的值就是指定打开链接的窗口的名称，如果不存在就新建窗口，如果已存在就在该窗口中打开。
对于现代浏览器来说，“窗口”指的就是“标签页”。
yqb 的回答是正确的。
target 预定义的取值有四个。其他的值则表示 framename，即在指定的框架中打开链接，如指定的框架不存在，就会新建一个页面/标签页作为该框架。
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