Question

作一个可供小学生数学运算的程序：10以内的加减乘除，能根据输入的题数计算机自动出题，并判断是否正确

对随机函数不太会用，还有如何控制计算机出题个数那里不太明白。。希望高手帮帮忙，写程序看看。
可不可以用c语言编呢、、、

Answer 1

Qbasic:

Randomize Timer
INPUT "N="; N
For i = 1 To N
k = Int(Rnd * 4)
Select Case k
Case 0:
a = Int(Rnd * 11)
b = Int(Rnd * 11)
e$ = "+"
c = a + b
Case 1:
c = Int(Rnd * 11)
b = Int(Rnd * 11)
e$ = "-"
a = b + c
Case 2:
a = Int(Rnd * 10)
b = Int(Rnd * 10)
e$ = "*"
c = a * b
Case 3:
c = Int(Rnd * 10)
b = Int(Rnd * 9) + 1
e$ = "/"
a = b * c
End Select
Print a; e$; b; "=";
INPUT d
If c = d Then
Print "right!"
Else
Print "Wrong!"
End If
Next i

Answer 2

Qbasic:

Randomize Timer
INPUT "N="; N
For i = 1 To N
k = Int(Rnd * 4)
Select Case k
Case 0:
a = Int(Rnd * 11)
b = Int(Rnd * 11)
e$ = "+"
c = a + b
Case 1:
c = Int(Rnd * 11)
b = Int(Rnd * 11)
e$ = "-"
a = b + c
Case 2:
a = Int(Rnd * 10)
b = Int(Rnd * 10)
e$ = "*"
c = a * b
Case 3:
c = Int(Rnd * 10)
b = Int(Rnd * 9) + 1
e$ = "/"
a = b * c
End Select
Print a; e$; b; "=";
INPUT d
If c = d Then
Print "right!"
Else
Print "Wrong!"
End If
Next i