Faon1425214630的博客

layui.use(['table'], function () { var $ = layui.$, table = layui.table; var mergeColumns=['a','b'];//需要合并的列的key值，前面的包含后面 var tableSetting = { id: 'frame', page: true, limit: 20, loading: true, cellMinWidth: 100, url: '.

一维数组思维定义二维，出错 var arr=[[]]; for (var k=0;k<2;k++){ for (var i=0;i<4;i++){ arr[k][i]=(k+1)*i; } }Uncaught TypeError: Cannot set property '0' of undefined 正确姿势 var arr=[[]]; for (var k=0;k<2;k++){ arr[k...