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mark作业

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froest2012

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['Pascal','Lua','Ruby'].map(function (x){ return '<li><span>'+x+'</span></li>'; }).reduce(function(x,y){ return x+y; }); var ul = $('#test-div ul'); ul.append(str); var li = ul.find('li'); li.sort(function (x,y){ if($(x).text()>$(y).text()){ return 1; }else{ return -1; } }); ul.append(li);//移动所有的li元素


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