C语言输入任意一个数字转化为二进制,十进制,八进制,十六进制

#includevoid showbit(int n){ if(n>1){ showbit(n/2); printf(" "); } printf("%d",n%2);}void showoct(int n){ if(n>7){ showoct(n/8); printf(" "); } printf("%d&quo