$(function () { var interestsValues = ['TableTennis', 'Basketball']; var interests = ""; for (var i = 0; i < interestsValues.length; i++) { interests += '
第二个问题,DOM未加载完成就可以操作DOM
$(document).ready(function() { var interestsValues = ['TableTennis', 'Basketball']; var interests = ""; for (var i = 0; i < interestsValues.length; i++) { interests += '' + interestsValues[i] + ''; } $("#checkedbox").append(interests); })