请读程序:#include <stdio.h>Main(){Int num=0;While( num <=2){Num++; printf("%d\n",num);}}上面程序的输出结果是______。① 1 ② 1 ③ 1 ④ 12 2 23 34
A.①
B.②
C.③
D.④
正确答案是C