C#用Split将英文首字母转换成大写

[LetItBeCJ]

定义字符串 比如 aaa bbb ccc，用Split将小a小b小c转换成大写

[大葡萄八块一斤]

            string str = "aaa bbb ccc";
            str = Regex.Replace(str, @"\b[a-z]", delegate(Match m) { return m.Value.ToUpper(); });

[assky124]

期末到了，好多来求作业的了

[xuzuning]

        static void Main(string[] args)
        {
            var s = "aaa bbb ccc";
            var t = s.Split(new char[] { ' ' }).Select(x => UppercaseFirst(x));
            Console.WriteLine(string.Join(" ", t));
        }
        static string UppercaseFirst(string s)
        {
            if (string.IsNullOrEmpty(s))
            {
                return string.Empty;
            }
            char[] a = s.ToLower().ToCharArray();
            a[0] = char.ToUpper(a[0]);
            return new string(a);
        }

用这则就这样写

Console.WriteLine(Regex.Replace(s, @"\w+", x => UppercaseFirst(x.Value)));