实验1 Python开发环境使用和编程初体验

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#print输出的几种用法

#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)

#task1_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 = '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*'=')

#task2_1
r1 = eval('1 + 2')
print(type(r1),r1)

r2 = eval('[1,6,7.5]')
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)}')

#task3
ans1 = 0.1+0.2
print(f'0.1+0.2={ans1}')

from decimal import Decimal

ans2 = Decimal('0.1')+Decimal('0.2')
print(f'0.1+0.2={ans2}')

#task4
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'))

#task5_1
from math import sqrt

n = float(input('输入一个数：'))


ans1 = sqrt(n)
ans2 = n**0.5

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：{ans2:.2f}')

#task5_2
from math import pi

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情。
         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*pi*r

print(f'绕起来，大饼的圆周有这么长，{circle},够不激发你探索未知的能力...')

x=eval(input('输入一个数：'))
y=x**365
print(str(x)+'的365次方:'+str(y))

T0=eval(input('T0= '))
from math import log
from math import pi
t=((67**(2/3)*3.7*1.038**(1/3)))/((5.4*0.001)*pi**(2)*(4*pi/3)**(2/3))*log(0.76*(T0-100)/(70-100))
x=t%60
y=t//60
print('T0={}℃'',''t={:.0f}分{:.0f}秒'.format(T0,x,y))

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