摘要：
1 var scrolltop = new Array(); 2 var index = 0; 3 scrolltop[0] = 0; 4 $(document).scroll(function(){ 5 index ++; 6 scrolltop[index] = $(document).scrollTop(); 7 if (scrolltop[in... 阅读全文
posted @ 2018-11-13 10:25
teagueli
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