$(function(){ //初始化 doPrice()// 鼠标移上全选框变色效果 $('.fa-check...
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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"&...
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<!DOCTYPE html> <html lang="en"> <head> &nbs...
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一、基本思路:1.写好基本样式后,通过id或标签名获取到数字、文本框及按钮2.声明一个变量n,通过length方法获取到当前文本框字数,n=总字数-文本框字数3.用n的值进行判断,若n>0,文本...
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步骤: 1.声明这两个变量 2.通过id定位到全选框和选框 3.并获取到选框数组的长度用来决定循环的次数 4.利用for循环和if条件语句判断,实现全选<!DOCTYPE html&...
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【1】js改变css样式:document.getElementById().style.属性名="属性值"。【2】改变元素的属性值:  ...
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