以下四个程序中,完全正确的是()。
A.
B. include;main(){int a=2,b=3,c; printf("c=%d\n",a+b);}
C. B.
D. includemain();{ /*源程序代码为*/printf("hello world !\n");}
E. C.
F. include main(){int a=2,b=3,c; printf("c=%d\n",a+b)}
G. D.
H. includemain(){/*源程序代码为*/printf("hello world!\n");}