字符串的Toupper方法将字符串转换为大写。

在C#中将字符串转换为大写字母示例

string sentence = "Onitroad.com a tutorial website for info-technology.";

Console.WriteLine("Oroirnal String: {0}", sentence);

Console.WriteLine("Uppercase: {0}", sentence.ToUpper());

Console.WriteLine("Lowercase: {0}", sentence.ToLower());