我们如何在每两个字符之间的字符串中创建空格？ [英] How do we make space in string between each two characters ?

问题描述

我们如何在每两个字符之间的字符串中创建空格？

如果我有字符串s =23hhppyyqq我想让它s =23 hh pp yy qq

How do we make space in string between each two characters ?
if I have string s ="23hhppyyqq" I want to make it s = "23 hh pp yy qq"

推荐答案

这可能帮助您 - 如何在单词之间添加空格无空间的字符串 [ ^ ]。

This might help you - How to add spaces between words in a spaceless strings[^].

简单：

Easy:

string inp = "23hhppyyqq";
bool addSpace = true;
StringBuilder sb = new StringBuilder((input.Length * 3) / 2);
foreach (char c in inp)
   {
   if (addSpace) sb.Append(' ');
   sb.Append(c);
   addSpace = !addSpace;
   }
string outp = sb.ToString().Trim();

这应该做：

This should do:

string input = "23hhppyyqq";
string result;
int requiredSpaces = (input.Length - 1) / 2;
if (requiredSpaces < 1)
{
    result = input;
}
else
{
    int resultLength = input.Length + requiredSpaces;
    StringBuilder sb = new StringBuilder(resultLength);
    for (int i=0; i<input.length; i++)
    {
        sb.Append(input[i]);
        if (i % 2 == 1)
        {
            sb.Append(' ');
        }
    }
    result = sb.ToString();
}

编辑：格式化

edit: formatting

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