C # switch

To start school (ah ah ah ah ah ah ah ah ah ah ah oh ah ah)

Be a silent action! (Peeing, peeing, peeing) today, I found a lot of basics on the water problem.

1. Switch (Control statement)

{Case constant expression: {statement;} break;

Case constant expression: {statement;} break;

。

。

Default:{statement;} Break

}

2. Precautions;

(1) switch control type int in C #, Char also has NULL

(2) The case must be a unique constant expression (if it needs to be computed with an IF)

(3) Note the position of the curly braces

(4) Break

#include <cstdio>#include<iostream>#include<cstring>using namespacestd;Const intn= +;CharSs[n];intMain () { while(gets (ss)) { for(intI=strlen (SS)-1; i>=0; i--)        {            Switch(Ss[i]) { Case'1':                 Case '2': {printf ("0000\n");p rintf ("111222\n");} Break;  Case '3': printf ("333333\n"); Break; }} printf ("\ n"); }    return 0;}

C # switch