编写程序,实现分段函数计算,如下表所示。
参考答案:【答案】x = input('Please input
x:') x = eval(x)
if x<0 or
x>=20:
print(0)
elif 0<=x<5:
print(x)
elif
5<=x<10:
print(3*x-5)
elif 10<=x<20:
print(0.5*x-2)
【解析】
x:') x = eval(x)
if x<0 or
x>=20:
print(0)
elif 0<=x<5:
print(x)
elif
5<=x<10:
print(3*x-5)
elif 10<=x<20:
print(0.5*x-2)
【解析】
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