编程高手进!C语言编程:ABCD-CDC=ABC,求A,B,C,D,如何解答.用for循环做...答:include"stdio.h"void main(){ int a,b,c,d;for(a=0;a<=9;a++)for(b=0;b<=9;b++)for(c=0;c<=9;c++)for(d=0;d<=9;d++)if((a!=b)&&(b!=c)&&(c!=d)&&((a*1000+b*100*c*10+d)-(c*100+d*10+c)==(a*100+b*10+c))){ printf("a=%d,b=%d,c=%d,d...