C # learning notes-type conversion, enumeration, foreach

@: Indicates the"\"Does not indicate escape characters.

The Escape Character is only applicableCode. It is not applicable to strings read from the console. The console prints what it reads and does not escape it.

 

Simple type conversion

Console. Writeline (" Enter a number: ");

StringS1 =Console. Readline ();// Unavailable Int To receive

IntI1 =Convert. Toint32 (S1 );

Console. Writeline (I1 );

 

The number in the mobile phone number or password only looks like a number. It is actually a string.

 

CastType conversion

You cannot Int And String Between. Only Convert Conversion.

 

EnumThe benefit of enumeration is that it limits the value range of a variable.

 

ForeachSyntax

String [] names = {"Lily", "lilei", "Lucy "};

Foreach (tring name in names)

{

Console. writeline (name );

}