帮忙写个JQ:文本框获得焦点时改变背景颜色_html/css_WEB-ITnose
HTML
要求:文本框获得焦点时改变背景颜色,获得焦点时,背景色为“#FFFF66”;失去焦点时,背景色为“#FFFFFF”。源代码:
回复讨论(解决方案)
$(function(){
$(":input").focus(function(){
$(this).css('background','#FFFF66');
}).blur(function(){
$(this).css('background','#FFFFFF');
});
});
这个只要网上一搜索就有的了
挺简单的啊,你百度看看获得焦点的函数,然后直接用js写就行了。。。
$(function(){
$(":input").focus(function(){
$(this).css('background','#FFFF66');
}).blur(function(){
$(this).css('background','#FFFFFF');
});
});
这个只要网上一搜索就有的了
+1
顺便问下,那个输入的长度几几的时候在做判断是怎么做到的?
是onkeyup判断内容长度么?

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