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改下

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//当用户点击“反选”时,自动把所有语言状态反转,并判断此时是否为全选或全未选状态; invertSelect.click(function(){ langs.prop('checked', function(i, val){ return !val; }); draw(); }); var draw = function(){ if(langs.length == $('input[name="lang"]:checked').length){ selectAll.prop('checked', true); selectAllLabel.hide(); deselectAllLabel.show(); }else{ selectAll.prop('checked', false); selectAllLabel.show(); deselectAllLabel.hide(); } }


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