十进制转换十六进制C语言源代码

#include "stdio.h"

#define MAX 50

main()

{int n,a[MAX],i=0,sign=0;

clrscr();

printf("Please input the decimal num:");

scanf("%d",&n);

if(n==0)

{printf("HEX=%d",n);

printf("\n\n\nPress any key to exit..."); getch();

exit(0);

}

if(n<0) {sign=1; n=-n;}

while(n!=0)

{a[i++]=n%16;

n=n/16;

}

printf("HEX=%cx",sign?'-':'');

for(;i>0;i--)

{switch(a[i-1])

{case 10: printf("a");break;

case 11: printf("b");break;

case 12: printf("c");break;

case 13: printf("d");break;

case 14: printf("e");break;

case 15: printf("f");break;

default: printf("%d",a[i-1]);

}

}

printf("\n\nPress any key to exit..."); getch();

}