如何在asp.net中拆分替代字符串值 [英] how to split alternative string values in asp.net

问题描述

string A="1234567890";
how to split string A to get below values??
string b=13579;
string c=24680;

推荐答案

为什么不简单地循环字符？类似

Why not simply loop the characters? Something like

string a="1234567890";
string b= "";
string c = "";

for (int counter = 0; counter < a.Length; counter++) {
   if (counter % 2 == 0) {
      b += a.ToArray()[counter];
   } else {
      c += a.ToArray()[counter];
   }
}

当然最好使用stringbuilder并将原始字符串转换为数组一次，依此类推，但要获得这个想法...

Of course it would be better to use a stringbuilder and to convert the original string to an array only once and so on, but to get the idea...

一个简单的迭代可以完成这项工作：

A simple iteration could do the job:

static void mysplit(string input, out string even, out string odd)
{
  even = odd = string.Empty;
  for (int n = 0; n < input.Length; ++n)
  {
    if (n % 2 == 0)
      even += input[n];
    else
      odd += input[n];
  }
}

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