#include
int main()
{
int a=3,b=4,c=5,u=51274,n=128765;
double x=1.2,y=2.4,z=-3.6;
char c1='a',c2='b';
printf("a = %d b = %d c = %d\n",a,b,c);
printf("x=%.6lf,y=%.6lf,z=%.6lf\n",x,y,z);
printf("x+y= %.2lf y+z=%.2lf z+x=%.1lf\n",x+y,y+z,z+x);
printf("u= %d n= %d\n",u,n);
printf("c1='%c' or %d(ASCII)\n",c1,c1);
printf("c2='%c' or %d(ASCII)\n",c2,c2);//c2='b' or 98(ASCII) 是小写的b你那里写错了
return 0;
}
建议你好好看一下C语言基础