若有说明:int a[ ][3] = {1,2,3,4,5,6,7,8,9};,则a数组第二维的大小是()
A. 2
B. 3
C. 4
D. 不确定值
下面程序段的运行结果是()Char c[5] = {'a', 'b', '\0', 'c', '\0'}; printf("%s", c);
A. 'a''b'
B. ab
C. ab c
D. a b
下面程序段的运行结果是()Char c[ ] = "\t\v\\\0will\n"; printf("%d",strlen(c));
A. 14
B. 3
C. 9
D. 字符串中有非法字符,输出值不确定
下面程序段的运行结果是____char ch[ ]= "600";int a,s = 0;for (a = 0;ch[a] >= '0'&& ch[a]<= '9'; a++) )s = 10 * s + ch[a] –'0';printf("%d",s);