JavaScript按IP地址排序

　　JavaScript按IP地址列表排序，主要思路就是分割每个点号部分，然后ip1和ip2分别对不够三位数的进行补0操作，然后转换为数字类型进行一一比较。

　　上代码：

　　正序：

　　

     var arr=[
             {ip:"10.20.39.12"},
             {ip:"43.120.39.11"},
             {ip:"25.210.39.21"},
             {ip:"75.110.39.131"},
             {ip:"12.230.139.14"},
             {ip:"17.20.39.121"},
             {ip:"11.220.139.111"},
             {ip:"172.30.39.131"},
             {ip:"190.10.139.123"},
             {ip:"170.20.4.222"}
         ]

     console.log(IpSortForward(arr,"ip"));

     //正序
 function IpSortForward(data, p) {
     for (i = 0; i < data.length - 1; i++) {
         for (j = 0; j < data.length - 1 - i; j++) {
             var arr1 = data[j][p].split("."), arr2 = data[j + 1][p].split(".");
             if (arr1[0].length == 2) {
                 var t = arr1[0]+"0";
                 arr1[0] = t;
             }else if(arr1[0].length == 1){
                 var t = arr1[0]+"00";
                 arr1[0] = t;
             }else{}

             if (arr1[1].length == 2) {
                 var t = arr1[1]+"0";
                 arr1[1] = t;
             }else if(arr1[1].length == 1){
                 var t = arr1[1]+"00";
                 arr1[1] = t;
             }else{}

             if (arr1[2].length == 2) {
                 var t = arr1[2]+"0";
                 arr1[2] = t;
             }else if(arr1[2].length == 1){
                 var t = arr1[2]+"00";
                 arr1[2] = t;
             }else{}

             if (arr1[3].length == 2) {
                 var t = arr1[3]+"0";
                 arr1[3] = t;
             }else if(arr1[3].length == 1){
                 var t = arr1[3]+"00";
                 arr1[3] = t;
             }else{}

             if (arr2[0].length == 2) {
                 var t = arr2[0]+"0";
                 arr2[0] = t;
             }else if(arr1[0].length == 1){
                 var t = arr2[0]+"00";
                 arr2[0] = t;
             }else{}

             if (arr2[1].length == 2) {
                 var t = arr2[1]+"0";
                 arr2[1] = t;
             }else if(arr2[1].length == 1){
                 var t = arr2[1]+"00";
                 arr2[1] = t;
             }else{}

             if (arr2[2].length == 2) {
                 var t = arr2[2]+"0";
                 arr2[2] = t;
             }else if(arr2[2].length == 1){
                 var t = arr2[2]+"00";
                 arr2[2] = t;
             }else{}

             if (arr2[3].length == 2) {
                 var t = arr2[3]+"0";
                 arr2[3] = t;
             }else if(arr2[3].length == 1){
                 var t = arr2[3]+"00";
                 arr2[3] = t;
             }else{}

             var param1=arr1[0]+arr1[1]+arr1[2]+arr1[3];
             var param2=arr2[0]+arr2[1]+arr2[2]+arr2[3];

             if (parseInt(param1) > parseFloat(param2)) {
                 var temp = data[j];
                 data[j] = data[j + 1];
                 data[j + 1] = temp;
             }
         }
     }
     return data;
 }

　　反序：

　　

     var arr=[
             {ip:"10.20.39.12"},
             {ip:"43.120.39.11"},
             {ip:"25.210.39.21"},
             {ip:"75.110.39.131"},
             {ip:"12.230.139.14"},
             {ip:"17.20.39.121"},
             {ip:"11.220.139.111"},
             {ip:"172.30.39.131"},
             {ip:"190.10.139.123"},
             {ip:"170.20.4.222"}
         ]

         console.log(IpSortForward(arr,"ip"));

 //反序
 function IpSortReverse(data, p) {
     for (i = 0; i < data.length - 1; i++) {
         for (j = 0; j < data.length - 1 - i; j++) {
             var arr1 = data[j][p].split("."), arr2 = data[j + 1][p].split(".");
             if (arr1[0].length == 2) {
                 var t = arr1[0]+"0";
                 arr1[0] = t;
             }else if(arr1[0].length == 1){
                 var t = arr1[0]+"00";
                 arr1[0] = t;
             }else{}

             if (arr1[1].length == 2) {
                 var t = arr1[1]+"0";
                 arr1[1] = t;
             }else if(arr1[1].length == 1){
                 var t = arr1[1]+"00";
                 arr1[1] = t;
             }else{}

             if (arr1[2].length == 2) {
                 var t = arr1[2]+"0";
                 arr1[2] = t;
             }else if(arr1[2].length == 1){
                 var t = arr1[2]+"00";
                 arr1[2] = t;
             }else{}

             if (arr1[3].length == 2) {
                 var t = arr1[3]+"0";
                 arr1[3] = t;
             }else if(arr1[3].length == 1){
                 var t = arr1[3]+"00";
                 arr1[3] = t;
             }else{}

             if (arr2[0].length == 2) {
                 var t = arr2[0]+"0";
                 arr2[0] = t;
             }else if(arr1[0].length == 1){
                 var t = arr2[0]+"00";
                 arr2[0] = t;
             }else{}

             if (arr2[1].length == 2) {
                 var t = arr2[1]+"0";
                 arr2[1] = t;
             }else if(arr2[1].length == 1){
                 var t = arr2[1]+"00";
                 arr2[1] = t;
             }else{}

             if (arr2[2].length == 2) {
                 var t = arr2[2]+"0";
                 arr2[2] = t;
             }else if(arr2[2].length == 1){
                 var t = arr2[2]+"00";
                 arr2[2] = t;
             }else{}

             if (arr2[3].length == 2) {
                 var t = arr2[3]+"0";
                 arr2[3] = t;
             }else if(arr2[3].length == 1){
                 var t = arr2[3]+"00";
                 arr2[3] = t;
             }else{}

             var param1=arr1[0]+arr1[1]+arr1[2]+arr1[3];
             var param2=arr2[0]+arr2[1]+arr2[2]+arr2[3];

             if (parseInt(param1) < parseFloat(param2)) {
                 var temp = data[j];
                 data[j] = data[j + 1];
                 data[j + 1] = temp;
             }
         }
     }
     return data;
 }

　　这是其他排序的方法，欢迎查看，欢迎给意见！

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