C # 14th character method, escape character, String method

The content of this section:

1: Definition of character

2: Method of the character

3: Escape character

4: Introduction to Strings

5: String method

1: Definition of character

Char corresponds to Unicode one by one, with a char of 2 bytes.

2: How to use the characters:

Instance:

 Static voidMain () {CharA ='a'; Charb ='0'; Charc ='A'; if(Char. Isletter (a)) {//Judgment lowercase Console.WriteLine ("A is {0} lowercase, and uppercase is {1}"AChar.            ToUpper (a)); }            if(Char. IsDigit (b)) {//Determine if the data is Console.WriteLine ("B is the {0} number;", B); } Console.WriteLine (Char. ToLower (c));        Convert to lowercase console.readkey (); }

3: Escape character

4: Introduction to Strings

Character set and character encoding relationships:

Commonly used character sets and character encodings:

View of the ASCII code table:

5: Method of String

1: Convert String to Size

static void Main ()        {            string res = "Jack";            char S1 = ' s ';            Console.WriteLine (Res. ToUpper()); The string becomes uppercase             Console.WriteLine (Char. ToUpper(S1)); The character becomes capitalized            Console.readkey ();        }

2: Comparison of strings

Method:

1: = =

2:string.equals (ARG1,ARG2) # #返回布尔值

3:string.compare (Arg1,arg2,[true|false]) # #可选的是true or False indicates whether the case of a character can be ignored

namespaceHelloWorld {classHello {Static voidMain () {stringres ="Jack"; stringRes2 ="Jack"; Console.WriteLine (string.            Equals (Res,res2)); Console.WriteLine (string.                Compare (Res,res2));        Console.readkey (); }    }}//true//0

Description under: Compare Method:

C # 14th character method, escape character, String method