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下列程序,显示的运行程序结果是*** for i in range(1,4,1): print("*",end="")


参考答案和解析
s=3 当k=7时,执行case7,s++,s的值为1。当k=6时,直接break出switch结构;当k=5时,执行case5,s+=2,s的值为3;当k=4时由于不满足for循环的条件,所以结束循环,所以输出的s的值为3。注意:循环语句和条件的嵌套使用。
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