In vi, which key is used to change from input mode to command mode?
A. F12
B. Ctrl + F7
C. ESC
D. ENTER
查看答案
Which of these is not true about vi?
A. You can search text in vi
B. You can edit multiple file simultaneously in vi
C. You can use regular expression in vi
D. You can find vi in almost every Unix installation
有inta[4]={5,3,8,9};则其中a[3]的值为()
A. 5
B. 3
C. 8
D. 9
有double d[30];则元素引用错误的是()
A. d[30]
B. d[20]
C. d[10]
D. d[0]
与语句“int a[10]={0};”能达到的效果相同的语句是( )。
A. int a[10]; a[0]=0;
B. int i,a[10]; for (i=0; i<10; i++ ) a[i]=0;
C. int i,a[10]; for (i=1; i<=10; i++ ) a[i]=0;
D. int a[10]; a[10]=0;
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