TIPS: Give a heartbeat to the boring. Net console Program (character Interface) (about the use of backspace '\ B)

/**/ /*
The vast majority of the sample code of the blog I wrote is the console.Program
There are some tips on the Character interface, which are quite simple. I will extract them again, so I will not talk much nonsense!
They are all skill-related:
Give a heartbeat to the boring. Net console Program (about the use of backspace '\ B')
Same for Java
*/

Public   Class Class1
{
Public   Static   Bool B; // End Condition

Static   Void Main ( String [] ARGs)
{
System. Console. writeline ( " Test 1: directly wait for n = 199 cycles " );
Wait ( 199 );

System. Console. writeline ( " \ N Test 2: Waiting For end condition: B = true " );
// Main program starts
B =   False ;
New System. Threading. Thread ( New System. Threading. threadstart (dowait). Start (); // Monitoring thread: displays a rolling counter
// The following are time-consuming main programs
System. Threading. thread. Sleep ( 5   *   1000 ); // The main program takes 5 seconds.
B =   True ; // Main program ended
System. Console. writeline ( " \ N the main program took 5 seconds " );
}


Private   Static   Void Wait ( Int Count)
{
System. Console. Write ( " In " );
String BS =   "" ; // Used to record the last digit
String S =   "" ;

For ( Int I =   0 ; I < Count +   1 ; I ++ )
{
S = System. datetime. Now. tostring ();
System. Threading. thread. Sleep ( 10 ); // 10/1000 second
System. Console. Write (BS +   " \ B \ B "   + I +   " Times, "   + S );
BS =   New   String ( ' \ B ' , Digits (I) + S. Length +   1 ); // 19 is the string length of the date and time, and 1 is ","
}
}

Private   Static   Void Dowait ()
{
Wait (RefB );//Real Functions called by Delegation
}

Private   Static   Void Wait ( Ref   Bool Flag) // Flag can be modified in other threads
{
System. Console. Write ( " In progress " );
Int I =   0 ;
String BS =   "" ;
String S =   "" ;
While ( ! Flag)
{
// System. Threading. thread. Sleep (1000 ); // 1 second
S = System. datetime. Now. tostring ();
System. Console. Write (BS +   " \ B \ B "   + I +   " Times, "   + S );
BS =   New   String ( ' \ B ' , Digits (I) + S. Length +   1 ); // 19 is the string length of the date and time, and 1 is ","
I ++ ;
}
}

Static   Int Digits ( Int N) // Number of digits
{
N = System. Math. Abs (N );
N = N / 10 ;
Int I =   1 ;
While (N >   0 )
{
N=N/10;
I++;
}
Return I;
}
}