实验1 Python开发环境使用和编程初体验
实验任务1
#实验1 #task1_1.py print('hey, u') print('hey', ' u') x,y,z = 1,2,3 print(x, y, z) print('x = %d, y = %d, z = %d' %(x,y,z)) print('x = {}, y = {}, z = {}'.format(x,y,z)) print(f'x = {x}, y = {y}, z = {z}') print(x) print(y) print(z) print(x, end=' ') print(y, end=' ') print(z) #task1_2.py x1, y1 = 1.2, 3.57 x2, y2 = 2.26, 8.7 print('{:-^40}'.format('输出1')) print('x1 = {}, y1 = {}'.format(x1, y1)) print('x2 = {}, y2 = {}'.format(x2, y2)) print('{:-^40}'.format('输出2')) print('x1 = {:.1f}, y1 = {:.1f}'.format(x1, y1)) print('x2 = {:.1f}, y2 = {:.1f}'.format(x2, y2)) print('{:-^40}'.format('输出3')) print('x1 = {:<15.1f}, y1 = {:<15.1f}'.format(x1, y1)) print('x2 = {:<15.1f}, y2 = {:<15.1f}'.format(x2, y2)) print('{:-^40}'.format('输出3')) print('x1 = {:<15.1f}, y1 = {:<15.1f}'.format(x1, y1)) print('x2 = {:<15.1f}, y2 = {:<15.1f}'.format(x2, y2)) print('{:-^40}'.format('输出4')) print('x1 = {:>15.1f}, y1 = {:>15.1f}'.format(x1, y1)) print('x2 = {:>15.1f}, y2 = {:>15.1f}'.format(x2, y2)) #task1_3.py name1, age1 = 'Bill', 19 name2, age2 = 'Hellen', 18 title = 'Personnel Information' print(f'{title:=^40}') print(f'name: {name1:10} age: {age1:3}') print(f'name: {name2:10} age: {age2:3}') print(40*'=')
运行结果截图
实验任务2
#task2_1.py r1 = eval('1 + 2') print(type(r1), r1) r2 = eval('1+2j') print(type(r2), r2) r3 = eval('"python"') print(type(r3), r3) r4 = eval('7, 42') print(type(r4), r4)
#task2_2.py
x, y = eval(input('Enter two oprands: '))
ans = x + y
print(f'{x} + {y} = {ans}') print(f'{type(x)} + {type(y)} = {type(ans)}')
实验任务三
#task3.py ans1 = 0.1 + 0.2 print(f'0.1 + 0.2 = {ans1}') import decimal ans2 = decimal.Decimal('0.1') + decimal.Decimal('0.2') print(f'0.1 + 0.2 = {ans2}')
实验任务4
#task4.py print(chr(0x1f600), end = " ") print(chr(0x1f601), end = " ") print(chr(0x1f602), end = " ") print(chr(0x1f603), end = " ") print(chr(0x1f604)) print(chr(10000), end=" ") print(chr(0x025b), end=" ") print(chr(0x2708), end=" ") print(chr(0x00A5), end=" ") print(chr(0x266b)) print(ord('a'), end = " ") print(ord('b'), end = " ") print(ord('c')) print(ord('A'), end = " ") print(ord('B'), end = " ") print(ord('C')) print(ord('0'), end = " ") print(ord('1'), end = " ") print(ord('2'))
实验任务5
#task5_1.py import math n = float(input('输入一个数:')) ans1 = n**0.5 ans2 = pow(n, 0.5) ans3 = math.sqrt(n) print('%.2f的平方根是: %.2f' %(n, ans1)) print('{:.2f}的平方根是: {:.2f}'.format(n, ans2)) print(f'{n:.2f}的平方根是: {ans3:.2f}')
#task5_2.py import math text = ''' 好奇心是人的天性。 理想情况下，学习新东西是让人愉快的事。 但学校里的学习似乎有点像苦役。 有时候，需要画一个大饼，每次尝试学一些新鲜的，才会每天变得更好一点点。 ''' print(text) r = float(input('给学习画一个大饼，大饼要做的很大，半径要这么大: ')) circle = 2*math.pi*r print(f'绕起来，大饼的圆周有这么长, {circle}, 够不够激发你探索未知的动力...')
实验任务6
#task6.py x=eval(input()) y=x**365 print(F'{x}的365次方：{y}')
实验任务7
实验任务8
#task8_1py ''' 家用电器销售系统 v1.0 ''' #欢迎信息 print('欢迎使用家用电器销售系统！') #产品信息列表 print('产品和价格信息如下：') print('********************************************************') print('%-10s'%'编号','%-10s'%'名称','%-10s'%'品牌','%-10s'%'价格','%-10s'%'库存数量') print('------------------------------------------------------------------------') print('%-10s'%'0001','%-10s'%'电视机','%-10s'%'海尔','%-10s'%'5999.00','%-10s'%'20') print('%-10s'%'0002','%-10s'%'冰箱','%-10s'%'西门子','%-10s'%'6998.00','%-10s'%'15') print('%-10s'%'0003','%-10s'%'洗衣机','%-10s'%'小天鹅','%-10s'%'1999.00','%-10s'%'10') print('%-10s'%'0004','%-10s'%'空调','%-10s'%'格力','%-10s'%'3900.00','%-10s'%'0') print('%-10s'%'0005','%-10s'%'热水器','%-10s'%'美的','%-10s'%'688.00','%-10s'%'30') print('%-10s'%'0006','%-10s'%'笔记本','%-10s'%'联想','%-10s'%'5699.00','%-10s'%'10') print('%-10s'%'0007','%-10s'%'微波炉','%-10s'%'苏泊尔','%-10s'%'480.50','%-10s'%'33') print('%-10s'%'0008','%-10s'%'投影仪','%-10s'%'松下','%-10s'%'1250.00','%-10s'%'12') print('%-10s'%'0009','%-10s'%'吸尘器','%-10s'%'飞利浦','%-10s'%'999.00','%-10s'%'9') print('------------------------------------------------------------------------') #用户输入信息 product_id=input('请输入您要购买的产品编号：') price=float(input('请输入您要购买的产品价格：')) count=int(input('请输入您要购买的产品数量：')) #计算金额 print('购买成功，您需要支付',price*count,'元') #退出系统 print('谢谢您的光临，下次再见！')
''' 家用电器销售系统 v1.0 ''' #欢迎信息 print('欢迎使用家用电器销售系统！') #产品信息列表 print('产品和价格信息如下：') print('********************************************************') print('%-10s'%'编号','%-10s'%'名称','%-10s'%'品牌','%-10s'%'价格','%-10s'%'库存数量') print('------------------------------------------------------------------------') print('%-10s'%'0001','%-10s'%'电视机','%-10s'%'海尔','%-10s'%'5999.00','%-10s'%'20') print('%-10s'%'0002','%-10s'%'冰箱','%-10s'%'西门子','%-10s'%'6998.00','%-10s'%'15') print('%-10s'%'0003','%-10s'%'洗衣机','%-10s'%'小天鹅','%-10s'%'1999.00','%-10s'%'10') print('%-10s'%'0004','%-10s'%'空调','%-10s'%'格力','%-10s'%'3900.00','%-10s'%'0') print('%-10s'%'0005','%-10s'%'热水器','%-10s'%'美的','%-10s'%'688.00','%-10s'%'30') print('%-10s'%'0006','%-10s'%'笔记本','%-10s'%'联想','%-10s'%'5699.00','%-10s'%'10') print('%-10s'%'0007','%-10s'%'微波炉','%-10s'%'苏泊尔','%-10s'%'480.50','%-10s'%'33') print('%-10s'%'0008','%-10s'%'投影仪','%-10s'%'松下','%-10s'%'1250.00','%-10s'%'12') print('%-10s'%'0009','%-10s'%'吸尘器','%-10s'%'飞利浦','%-10s'%'999.00','%-10s'%'9') print('------------------------------------------------------------------------') #用户输入信息 product_id=input('请输入您要购买的产品编号：') price=float(input('请输入您要购买的产品价格：')) count=int(input('请输入您要购买的产品数量：')) #计算金额 print('购买成功，您需要支付',price*count,'元') #退出系统 x='谢谢您的光临，下次再见' print('x={}'.format(x))
''' 家用电器销售系统 v1.0 ''' #欢迎信息 print('欢迎使用家用电器销售系统！') #产品信息列表 print('产品和价格信息如下：') print('********************************************************') print('%-10s'%'编号','%-10s'%'名称','%-10s'%'品牌','%-10s'%'价格','%-10s'%'库存数量') print('------------------------------------------------------------------------') print('%-10s'%'0001','%-10s'%'电视机','%-10s'%'海尔','%-10s'%'5999.00','%-10s'%'20') print('%-10s'%'0002','%-10s'%'冰箱','%-10s'%'西门子','%-10s'%'6998.00','%-10s'%'15') print('%-10s'%'0003','%-10s'%'洗衣机','%-10s'%'小天鹅','%-10s'%'1999.00','%-10s'%'10') print('%-10s'%'0004','%-10s'%'空调','%-10s'%'格力','%-10s'%'3900.00','%-10s'%'0') print('%-10s'%'0005','%-10s'%'热水器','%-10s'%'美的','%-10s'%'688.00','%-10s'%'30') print('%-10s'%'0006','%-10s'%'笔记本','%-10s'%'联想','%-10s'%'5699.00','%-10s'%'10') print('%-10s'%'0007','%-10s'%'微波炉','%-10s'%'苏泊尔','%-10s'%'480.50','%-10s'%'33') print('%-10s'%'0008','%-10s'%'投影仪','%-10s'%'松下','%-10s'%'1250.00','%-10s'%'12') print('%-10s'%'0009','%-10s'%'吸尘器','%-10s'%'飞利浦','%-10s'%'999.00','%-10s'%'9') print('------------------------------------------------------------------------') #用户输入信息 product_id=input('请输入您要购买的产品编号：') price=float(input('请输入您要购买的产品价格：')) count=int(input('请输入您要购买的产品数量：')) #计算金额 print('购买成功，您需要支付',price*count,'元') #退出系统 x='谢谢您的光临，下次再见' print(f'x={x}')
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