...的次序依次输出。例如,输入1234时,输出结果为4321。答:main(){ int i,a,b,c,d,e,f,g,h;printf("Please Input a number:\n");scanf("%d",&a);while(a>=10000||a<=999){printf("Input again:\n");scanf("%d",&a);} b=a/1000;c=a%1000;d=c/100; e=c%100;f=e/10; d=g%10;h=g*1000+f*100+d*10+b;printf("%d",...