var arr=[112,6,3,77,33,11,4]; arr.sort(function(a,b){return a-b}); alert(arr.toString()); //二次元 var aa=[]; aa[0]=["4","aa1"]; aa[1]=["3","aa2"]; aa[2]=["1","aa3"]; aa[3]=["2","aa4"]; aa.sort(function(a,b){return a[0]-b[0]}); alert(aa.toString());