int a=3,b=4,c=5;执行表达示,a++>&&c--&&++c后,a,b,c的值答:例如:a = 3,b = 5,现交换a,b的值,这个问题就好像交换两个杯子水,这当然要用到第三个杯子,假如第三个杯子是c,那么正确的程序为:c = a; a = b; b = c; 执行结果是a = 5,b = c = 3如果改变其顺序,写成:a = b; c = a; b =c; 则执行结果就变成a = b = c = 5,不能达到预期的...
1. 若a=3, b=4, c=5, x=1.2, y=2.4, z= -3.6, u=51274, n=128765...答:main(){ int a=3,b=4,c=5;float x=1.2,y=2.4,z=-3.6;long u=51274,n=128765;char c1='a',c2='b';printf("a=_%d__b=_%d__c=_%d\n",a,b,c);printf("x=%f,y=%f,z=%f\n",x,y,z);printf("x+y=_%.2f __y+z=%.2f __z+x=%.2f\n",x+y,y+z,z+x...