实验1

'''task1-1'''
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)



'''task-2'''
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4'))
print('x1={:>15.1f},y1={:>15.1f}'.format(x1,y1))
print('x2={:>15.1f},y2={:>15.1f}'.format(x2,y2))



'''task1-3'''
name1,age1='Bill',19
name2,age2='Hellon',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*'=')

'''task2-1'''
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'''
x,y=eval(input('Enter two oprands:'))
ans=x+y

print(f'{x}+{y}={ans}')
print(f'{type(x)}+{type(y)}={type(ans)}')

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}')

print(chr(0x1f600),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('0'),end=" ")
print(ord('1'),end='')
print(ord('2'))

'''task5-1'''
import math

n=float(input('输入一个数：'))

ans1=n**0.5
ans2=pow(n,0.5)
ans3=matb.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'''
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
但学校的学习似乎有点像苦役，
'''
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')
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...')

x=eval(input()) #x取1.0，1.01，0.09
y=x**365
print(f'{x}的365次方为{y:.2f}')

ρ = 1.038
c = 3.7J
K = 5.4e-3
M1= 47#小鸡蛋,
M= 67# 大鸡蛋
Tw=100
T0=eval(input('初始温度'))
Ty= 70
import math
t=((M**(2/3)*c*ρ**(1/3))/(K*(math.pi)**2*(4*math.pi/3)**(2/3)))*math.log(math.e,0.76*(T0 - Tw)/(Ty - Tw))
t1 = int(t//60)
t2 = int(t% 60 + 0.5)
print(f'T0 = {T0}℃, t = {t1}分{t2}秒')

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',  '%10.2f' %5999.00,'%10d'%20)
print('%-10s'%'0002','%-10s'%'冰箱',  '%-10s'  %'西门子','%10.2f' %6998.00,'%10d'%15)
print('%-10s'%'0003','%-10s'%'洗衣机','%-10s'  %'小天鹅','%10.2f' %1999.00,'%10d'%10)
print('%-10s'%'0004','%-10s'%'空调',  '%-10s'  %'格力',  '%10.2f' %3900.00,'%10d'%0)
print('%-10s'%'0005','%-10s'%'热水器','%-10s'  %'美的',  '%10.2f' %688.00,'%10d' %30)
print('%-10s'%'0006','%-10s'%'笔记本','%-10s'  %'联想',  '%10.2f' %5699.00,'%10d'%10)
print('%-10s'%'0007','%-10s'%'微波炉','%-10s'  %'苏泊尔','%10.2f' %480.50,'%10d' %33)
print('%-10s'%'0008','%-10s'%'投影仪','%-10s'  %'松下',  '%10.2f' %1250.00,'%10d'%12)
print('%-10s'%'0009','%-10s'%'吸尘器','%-10s' %'飞利浦','%10.2f' %999.00,'%10d'%9)
print('--------------------------------------------------------------')

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:'))

print('购买成功，您需要支付',price*count,'元')

print('谢谢您的光临，下次再见！')