Dav*_*Ops 2 c# arrays string char
static string RemoveDuplicateChars(string key)
{
// --- Removes duplicate chars using string concats. ---
// Store encountered letters in this string.
string table = "";
// Store the result in this string.
string result = "";
// Loop over each character.
foreach (char value in key)
{
// See if character is in the table.
if (table.IndexOf(value) == -1)
{
// Append to the table and the result.
table += value;
result += value;
}
}
return result;
}
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上面的代码片段来自http://www.dotnetperls.com/duplicate-chars。我的问题是,result当您可以使用时,为什么还需要额外的变量table?这两个变量都有原因吗?我相信下面是我编写的代码,可以实现相同的目的。我错过了什么吗?再次感谢并期待在这里做出贡献!
重写代码:
static string RemoveDuplicateChars(string key)
{
// --- Removes duplicate chars using string concats. ---
// Store encountered letters in this string.
string table = "";
// Loop over each character.
foreach (char value in key)
{
// See if character is in the table.
if (table.IndexOf(value) == -1)
{
// Append to the table and the result.
table += value;
}
}
return table;
}
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你所做的并没有什么问题。那应该工作得很好。话虽这么说,在 C# 中我们也有 linq。你可以采取 achar[]并执行以下操作:
char[] result = inputCharArray.Distinct().ToArray();
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