实现效果:

知识运用:
System.Char的静态方法 (判断一个给定的字符是否为数字 字母 标点符号或其他)
实现效果:
static void CharFunctionality()
{
Console.WriteLine("=> char type Functionality:");
char myChar = 'a';
Console.WriteLine("char IsDigit('a'): {0}",char.IsDigit(myChar));
Console.WriteLine("char IsLetter('a'): {0}",char.IsLetter(myChar));
Console.WriteLine("char IsWhiteSpace('Hello Word',5): {0}",char.IsWhiteSpace("Hello Word",5));
Console.WriteLine("char IsWhiteSpace('Hello Word',6): {0}", char.IsWhiteSpace("Hello Word", 6));
Console.WriteLine("char IsPunctuation('?'): {0}",char.IsPunctuation('?'));
}
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