同一個原型鏈函數(shù)，傳入不同參數(shù)，得出不同的結果，但后一個函數(shù)覆蓋了前一個函數(shù)，兩個函數(shù)輸出相同的結果，此為排序的示例，排序優(yōu)先級為age->sex->idvararr=[{"name":"aa","id":1000,"sex":0,"age":28},{"name":"bb","id":1001,"sex":1,"age":18},{"name":"cc","id":1002,"sex":0,"age":18},{"name":"cc","id":1003,"sex":1,"age":18}];//1.升序functionupsort(first,second,third){returnfunction(a,b){varv1=a[first];varv2=b[first];varres=v1-v2;if(res==0){upsort(first,second,third);varv3=a[second];varv4=b[second];varres2=v3-v4;returnres2;if(res2==0){upsort(first,second,third);varv5=a[third];varv6=b[third];varres3=v5-v6;returnres3;}}returnres;}}//2.降序functiondownsort(first,second,third){returnfunction(a,b){varv1=a[first];varv2=b[first];varres=v2-v1;if(res==0){downsort(first,second,third);varv3=a[second];varv4=b[second];varres2=v4-v3;returnres2;if(res2==0){downsort(first,second,third);varv5=a[third];varv6=b[third];varres3=v6-v5;returnres3;}}returnres;}}functionsortPlugin(){}sortPlugin.prototype.str=1;//1為升序，2為降序，默認為升序sortPlugin.prototype.sortWay=function(str=this.str){if(str==1){console.log(arr.sort(upsort("age","sex","id")));}elseif(str==2){console.log(arr.sort(downsort("age","sex","id")));}}varsp=newsortPlugin();sp.sortWay();sp2.sortWay(2);單獨運行兩個函數(shù)是沒問題的，不知道哪里出了問題，原型鏈還沒有吃透