第三次python作业

第一题：

import random#初始化
No=[]
Javaaverage=[]
Caverage=[]
Pythonaverage=[]
Averageaverage=[]
#随机生成学号
print("学号\t\t\t姓名\t\tjava\tC语言\tPython\t平均成绩\t")
name=['小谢','小祥','小辉','小知','小离']

for i in range(5):
    No= 20170000 + random.randint(0, 9999)
    a = random.randint(60, 100)
    Javaaverage.append(a)
    b = random.randint(60, 100)
    Caverage.append(b)
    pythonaverage = random.randint(60, 100)
    Pythonaverage.append(pythonaverage)
    averageaverage=(a+b+pythonaverage)/3
    Averageaverage.append(averageaverage)
    print("%d\t%s\t\t%d\t\t%d\t\t%d\t\t%.2f\t\t"%(No,name[i],a,b,pythonaverage,averageaverage))

print("Java平均成绩：")
average_Javaaverage=(Javaaverage[0]+Javaaverage[1]+Javaaverage[2]+Javaaverage[3]+Javaaverage[4])/5
print(average_Javaaverage)

print("C语言平均成绩：")
average_Caverage=(Caverage[0]+Caverage[1]+Caverage[2]+Caverage[3]+Caverage[4])/5
print(average_Caverage)

print("Python平均成绩：")
average_Pythonaverage=(Pythonaverage[0]+Pythonaverage[1]+Pythonaverage[2]+Pythonaverage[3]+Pythonaverage[4])/5
print(average_Pythonaverage)
Max=max(Pythonaverage)
Min=min(Pythonaverage)
average_Python=(Pythonaverage[0]+Pythonaverage[1]+Pythonaverage[2]+Pythonaverage[3]+Pythonaverage[4])/5
print("Python平均成绩：%.2f\t\tPython成绩最高为：%.2f\t\tPython成绩最低为：%.2f\t\t"%(average_Python,Max,Min))

 https://gitee.com/qbz140258/knowing_and_leaving/commit/0c143a10418b11e8aae41db03b1117bd36147e95

第二题：

print("请输入以Y或$表示的金额:")
cash=input()
try:
    eval(cash[1:])
except NameError:
    print("错误，第二位开始请输入整数")
except SyntaxError:
    print("错误，第二位开始请输入整数")
if cash[0] in ['Y']:
    cashy = eval(cash[1:]) / 6
    print("${:.2f}".format(cashy))
elif cash[0] in ['$']:
    money = 6 * eval(cash[1:])
    print("Y{:.2f}".format(money))
else:
    print("错误，第一位输入Y或$")

https://gitee.com/qbz140258/knowing_and_leaving/commit/4ddd2e945399d2d57dc9b373cc5e8f454df31406