vb大一程序初步答案(4)

程序设计语言教程(人民邮电出版社)第三章课后习题答案

三、写出下列程序运行结果 1. Private Sub Form_Click()

Print -2 * 3 / 2, "Visual " & "Basic", Not 5 > 3, 0.75 Print -2 * 3 / 2; "Visual " & "Basic"; Not 5 > 3; 0.75

x = 12.34 Print "x="; Print x End Sub

1.答案： -3 Visual BASIC False .75

-3 Visual BASICFalse .75

x=12.34

2. Private Sub Form_Click()

Print Tab(10); -100; Tab(20); 200; Tab(30); -300 Print Spc(5); -100; Spc(5); 200; Spc(5); -300 End Sub

2. 答案：-100 200 -300

-100 200 -300

3. Private Sub Command1_Click()

Print "12345678901234567890" x = 1: y = 2 Print 1; 2; -3; -4 Print 4; Print

Print "x" + " x" + "y" + "=" + "x + y" Print Tab(2); x; Tab(5); y; Space(3); x + y Print Str(x) + "+" + Str(y) + "=" + Str(x + y) End Sub

答案： 12345678901234567890

1 2 -3 -4 4

X xy=x + y 1 2 3 1+ 2= 3