Question

这个应用程序应该写一个字符串写的是pascal case：

for p in (row): column_num = 1 _= ws0.cell(row = row_number,column= column_num,value = (p.column_num))

并将单词分开形成一个句子，只保留首字母大写：

HelloHowAreYou?

截至目前，此代码仅在每个单词用不同的字母标出时才有效。示例句Hello how are you?以HelloHowAreYou

形式出现

为什么要这样做？

hellohow are you?

Answer 1

这对你有用吗？

var test = "HelloHowAreYou";
var final = "";
bool firstCharacterCheckIsDone = false;
foreach (char c in test)
{
    if (char.IsUpper(c))
    {
        if (test.IndexOf(c) == 0 && !firstCharacterCheckIsDone)
        {
            final += " " + c.ToString();
            firstCharacterCheckIsDone = true;
        }
        else
            final += " " + c.ToString().ToLower();
    }
    else
        final += c.ToString();
}

Console.WriteLine(final.Trim());

输出：

Hello how are you

检查Fiddle

正如您的示例中H正在重复Hello＆amp; How你没有得到你想要的输出。

您可以使用我的上述解决方案制作方法：

public static void Main()
{
    Console.WriteLine(FinalOutput("HelloHowAreYou?"));  
}

static string FinalOutput(string test)
{
    var final = "";
    bool firstCharacterCheckIsDone = false;
    foreach (char c in test)
    {
        if (char.IsUpper(c))
        {
            if (test.IndexOf(c) == 0 && !firstCharacterCheckIsDone)
            {
                final += " " + c.ToString();

                //This here will make sure only first character is in Upper case
                //doesn't matter if the same character is being repeated elsewhere
                firstCharacterCheckIsDone = true; 
            }
            else
                final += " " + c.ToString().ToLower();
        }
        else
            final += c.ToString();
    }

    return final.Trim();
}

输出：

Hello how are you?

检查Fiddle

Answer 2

原始版本出现相同字母问题的原因是您使用了IndexOf。该方法只返回字母的第一个索引，因此如果您有多个以相同字母开头的单词，则您的版本只会更改第一个字母。

这是另一个选项，使用字符串构建器：

string SeparateToWords(string pascalSentence)
{
    if(string.IsNullOrEmpty(pascalSentence))
    {
        return pascalSencentce;
    }
    var sb = new StringBuilder();
    // note I'm starting from 1 not from 0 here
    for(var i = 1; i < pascalSentence.Length; i++)
    {
        if(char.IsUpper(pascalSentence[i]))
        {
            sb.Append(" ").Append(pascalSentence[i].ToString().ToLower());
        }
        else
        {
            sb.Append(pascalSentence[i]);
        }
    }
    sb.Insert(0, pascalSentence[0]);
    return sb.ToString();
}

Live demo or rextester

字分隔符应用程序

2 个答案: