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zhoumengkang/input.js

Last active August 29, 2015 13:56
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input.js
<input type="text" class='user' value='用户名 仅英文或数字' onfocus="if(this.value=='用户名 仅英文或数字'){this.value=''}" onblur="if(!$.trim(this.value)){this.value='用户名 仅英文或数字'}">
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直接用jquery的$.trim

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