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mui quErysElECtorAll

$.each(document.querySelectorAll('.mui-slider-group .mui-scroll'), function(index, pullRefreshEl) {$(pullRefreshEl).pullToRefresh({down: {callback: ...

var lis = document.querySelectorAll ('ul li'); for ( var i = 0; i < lis.length; i++) { let j = i; lis[i].onclick = function () { ...

你好,你把代码放到window.onload=function(){...}里面试试看,如果页面还没加载到go按钮而且你代码是放在go按钮的前面,你就调用了getElementById,返回的...

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