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#2
qtt2014-10-09 21:12
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a = Int(10 * Rnd)
b = Int(10 * Rnd)
If a >= b Then
Print a & "+" & b;
Print a & "-" & b
Else
c = a
a = b
b = c
Print a & "+" & b;
Print a & "-" & b
这个出来是一个加法一个减法。如何随机出现加法或者减法?