摘要： 添加 tabindex='-1' 属性；默认：获取不到焦点事件（blur）1可以获取焦点事件（blur）1具体详解：先看：W3C关于onfocus的部分Theonfocus event occurs when an element receives focus either by the pointing device or by tabbing navigation.This attribute may be used with the following elements: A, AREA, LABEL, INPUT, SELECT, TEXTAREA, and BUTTO 阅读全文

摘要： 使用jQuery在上传图片之前实现缩略图预览jQuery代码01$("#uploadImage").on("change",function(){02// Get a reference to the fileList03varfiles = !!this.files ?this.files : [];0405// If no files were selected, or no FileReader support, return06if(!files.length || !window.FileReader)return;0708// Only pr 阅读全文