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               source_id[1]=1;
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    var contenta='';
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		    contenta+='<a class="videosc" href="javascript:void(0);" onClick="add_cart(\'888\',\'0.70\',1);">购买</a>';
        file_id=888;
    content+='<li id="item_0_888_1_2_888||0.70_0"  style="cursor:pointer;" class="videoxz"><p id="name_888" class="green">几何证明计算';
    content+=contenta;
    content+='</p>';
	content+='<p><em class="lbcoin">录播</em><em>6分50秒 </em><em class="videop">0.70元</em></p>';
	content+='</li>';
        var contenta='';
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		    contenta+='<a class="videosc" href="javascript:void(0);" onClick="add_cart(\'889\',\'0.70\',1);">购买</a>';
        file_id=888;
    content+='<li id="item_1_889_1_2_889||0.70_0"  style="cursor:pointer;" class="videop"><p id="name_889" >20200418_201451';
    content+=contenta;
    content+='</p>';
	content+='<p><em class="lbcoin">录播</em><em>9分26秒 </em><em class="videop">0.70元</em></p>';
	content+='</li>';
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        buy_button+='<a class="videoljbm" href="javascript:void(0);" onClick="add_cart(\'560\',\'1.4\',2)">全部购买</a>';   
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       price_str+='<em class="videokg">￥1.40</em>';