为了读取数据，需打开顺序文件“D:\data5.txt”，以下正确的命令是
A: Open D:\data5.txt For Input As #1
B: Open "D:\data5.txt"For Input As #2
C: Open D:\data5.txt For Output As #1
D: Open "D:\data5.txt"For Output As #2
A: Open D:\data5.txt For Input As #1
B: Open "D:\data5.txt"For Input As #2
C: Open D:\data5.txt For Output As #1
D: Open "D:\data5.txt"For Output As #2
举一反三
- 为了读取数据，需要打开顺序文件“D:\data5.txt”，以下正确的命令是。 A: Open "E:\UserData.txt" For Input As B: 2 C: Open "E:\UserData.txt" For Output As D: 2 E: Open E:\UserData.txt For Output As F: 2 G: Open E:\UserData.txt For Input As H: 1
- 为了读取数据，需要打开顺序文件“D:data5.txt”，以下正确的命令是 。
- 如果从数据文件 c:\data.txt 中读取数据时,以下打开文件方式中,正确的是( ). A: Open c:\data.txt For Input As B: 1 C: Open c:\data.txt For Output As D: 1 E: Open "c:\data.txt" For Input As F: 1 G: Open "c:\data.txt" For Output As H: 1
- Suppose I have a data set called DATA and want to extract rows 1 to 10 and columns 5 to 7. What would be the relevant R command? A: DATA[1:10,5:7] B: DATA[5:7,1:10] C: DATA[10:1,7:5] D: DATA[7:5,10:1]
- 下列程序的功能是：将数据1,2,..,8写入顺序文件Num. txt中请补充完整。 Private Sub Form_Click ( ) Dim i As Integer Open "Num. txt" For Output As #1 For i = 1 To 8 【13】 Next Close #1 End Sub