未分类题

可以产生30一50(含30和50)之间的随机整数的表达式是
D.Int(Rnd*30+50)

A.Int(Rnd*21+30)
B.Int(Rnd*20+30)
C.Int(Rnd*50-Rnd$30)

【参考答案】

A
解析：生成某个范围内的随机整数，计算公式为：Int((上界-下界+1)*Pmd+下界)，题目中上界为30，下......

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