十进制转换十六进制C语言源代码.doc
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#include"stdio.h"
#defineMAX50
main()
{intn,a[MAX],i=0,sign=0;
clrscr();
printf("Pleaseinputthedecimalnum:
");
scanf("%d",&n);
if(n==0)
{printf("HEX=%d",n);
printf("\n\n\nPressanykeytoexit...");
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])
{case10:
printf("a");break;
case11:
printf("b");break;
case12:
printf("c");break;
case13:
printf("d");break;
case14:
printf("e");break;
case15:
printf("f");break;
default:
printf("%d",a[i-1]);
}
}
printf("\n\nPressanykeytoexit...");
getch();
}