数组交叉循环搭配的排列组合问题
有多个数组.如何组成一个二维数组
如:
数组一:红色,蓝色,白色
数组二:大,中,小
最终组成的数组为:{红色,大}{红色,中}{红色,小}{蓝色,大}{蓝色,中}{蓝色,小}{白色,大}{白色,中}{白色,小}
条件:一维数组的个数不确定,有可能有三个,有可能有四个等.
请教高手如何实现
[解决办法]
var a = ["红色", "蓝色", "白色"];var b = ["大", "中", "小 "]var c = [];for(var i in a) for(var j in b) c.push([a[i], b[j]]);alert(c);
[解决办法]
string[] arr1 = new string[] { "红色", "蓝色", "白色" }; string[] arr2 = new string[] { "大", "中", "小","超大" }; string[][] arr3 = new string[arr1.Length*arr2.Length][]; for (int i = 0; i < arr1.Length; i++) { for (int j = 0; j < arr2.Length; j++) { string[] arr = new string[] { arr1[i], arr2[j] }; arr3[i + arr1.Length*j] = arr; } }
[解决办法]
下面代码，加上必要using，直接运行，就是你要结果。
class Program { static void Main(string[] args) { testArray(); } private static void testArray() { object[] a = {"红色", "蓝色", "白色","黑色"}; object[] b = {"大", "中", "小"}; int n = a.Length*b.Length; object[][] c = new object[n][]; for (int i = 0; i < n; i++) { c[i] = new object[2]; c[i][0] = a[i / b.Length]; c[i][1] = b[i % b.Length]; } System.Console.WriteLine("a = " + Array2String(a)); System.Console.WriteLine("b = " + Array2String(b)); System.Console.WriteLine("c = " + Array2String(c)); System.Console.ReadLine(); } private static string Array2String(object[] arr){ StringBuilder sb = new StringBuilder(); sb.Append("{"); for (int i = 0;i<arr.Length;i++) { object o = arr[i]; if (o is Array) sb.Append(Array2String((object[])o)); else sb.Append(o); if (i < arr.Length - 1) { sb.Append(","); } } sb.Append("}"); return sb.ToString(); }}
[解决办法]
class testArray { private string[] str1 = { "红", "黄", "蓝" }; private string[] str2 = { "大", "中", "小" }; private string[,] str3 = null; public void newArray() { int m = str1.Length; int n = str2.Length; str3 = new string[m, n]; for (int i = 0; i < str1.Length; i++) { for (int j = 0; j < str2.Length; j++) { str3[i,j] = str1[i] + str2[j]; } } } public void printNewArray() { for (int i = 0; i < str1.Length; i++) { for (int j = 0; j < str2.Length; j++) { System.Console.WriteLine(str3[i,j]); } } } static void Main(string[] args) { testArray ta = new testArray(); ta.newArray(); ta.printNewArray(); }
[解决办法]
using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string[] arr1 = new string[] { "红色", "蓝色", "白色" };
string[] arr2 = new string[] { "大", "中", "小" };
//泛型分组，接下就要靠你遍历获取数据凑成你要的格式！！！！！
Dictionary<string, List<string>> a = new Dictionary<string, List<string>>();
foreach (string i in arr1)
{
if (a.ContainsKey(i))
{
a[i].Add(i);
}
else
{
List<string> b = new List<string>();
a.Add(i, b);
}
}
}
}
}
[解决办法]
刚才那个有点错
现在改过来
本人测试过可以实现你的要求····
我想该结贴了~~~~
using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
//初始化
string[] arr1 = new string[] { "红色", "蓝色", "白色" };
string[] arr2 = new string[] { "大", "中", "小" };
Dictionary<string, List<string>> a = new Dictionary<string, List<string>>();
foreach (string i in arr1)
{
List<string> b = new List<string>();
a.Add(i, b);
foreach (string j in arr2)
{
a[i].Add(j);
}
}
//分配
string[] arr3 = new string[arr1.Length*arr2.Length];
int k=0;
foreach(string i in a.Keys)
{
foreach(string j in a[i])
{
arr3[k] = i + "," + j;
k++;
}
}
///输出显示
foreach(string m in arr3)
{
Console.WriteLine(m);
}
}
}
}
[解决办法]
struct Matrix { private string[] element; public string[] Element { get { return element == null ? new string[0] : element; } set { element = value; } } public Matrix(string[] s) { element = s; } public Matrix Multiply(Matrix m) { string[] s = new string[this.element.Length * m.element.Length]; int index = 0; for (int i = 0; i < this.element.Length; i++) { for (int j = 0; j < m.element.Length; j++) { s[index] = this.element[i] + "," + m.element[j]; index++; } } return new Matrix(s); } } public static void PrintResult(params string[][] arrays) { Matrix m = new Matrix(); foreach (string[] array in arrays) { if (m.Element.Length == 0) m = new Matrix(array); else m = m.Multiply(new Matrix(array)); } foreach (string s in m.Element) Console.WriteLine(s); } static void Main(string[] args) { string[] s1 = { "红色", "蓝色", "白色" }; string[] s2 = { "大", "中", "小" }; string[] s3 = { "10克", "20克", "30克" }; PrintResult(s1); Console.WriteLine("--------------------------"); PrintResult(s1, s2); Console.WriteLine("--------------------------"); PrintResult(s1, s2, s3); }/*输出:红色蓝色白色--------------------------红色,大红色,中红色,小蓝色,大蓝色,中蓝色,小白色,大白色,中白色,小--------------------------红色,大,10克红色,大,20克红色,大,30克红色,中,10克红色,中,20克红色,中,30克红色,小,10克红色,小,20克红色,小,30克蓝色,大,10克蓝色,大,20克蓝色,大,30克蓝色,中,10克蓝色,中,20克蓝色,中,30克蓝色,小,10克蓝色,小,20克蓝色,小,30克白色,大,10克白色,大,20克白色,大,30克白色,中,10克白色,中,20克白色,中,30克白色,小,10克白色,小,20克白色,小,30克*/