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有些网站的网页内容不是一次性加载完毕的,而是在鼠标向下滚动时动态加载的,这是怎么做到的呢?看下面代码:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | var loading = false ; $(window).scroll( function (){ if ((($(window).scrollTop()+$(window).height())+250)>=$(document).height()){ if (loading == false ){ loading = true ; $( '#loadingbar' ).css( "display" , "block" ); $.get( "load.php?start=" +$( '#loaded_max' ).val(), function (loaded){ $( 'body' ).append(loaded); $( '#loaded_max' ).val(parseInt($( '#loaded_max' ).val())+50); $( '#loadingbar' ).css( "display" , "none" ); loading = false ; }); } } }); $(document).ready( function () { $( '#loaded_max' ).val(50); }); |