$(function(){ //初始化 doPrice()// 鼠標移上全選框變色效果 $('.fa-check...
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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"&...
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一、基本思路：1.寫好基本樣式后，通過id或標簽名獲取到數(shù)字、文本框及按鈕2.聲明一個變量n，通過length方法獲取到當前文本框字數(shù)，n=總字數(shù)-文本框字數(shù)3.用n的值進行判斷，若n>0,文本...
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步驟: 1.聲明這兩個變量 2.通過id定位到全選框和選框 3.并獲取到選框數(shù)組的長度用來決定循環(huán)的次數(shù) 4.利用for循環(huán)和if條件語句判斷,實現(xiàn)全選<!DOCTYPE html&...
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【1】js改變css樣式：document.getElementById().style.屬性名="屬性值"?！?】改變元素的屬性值： ...
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