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)

x1, y1 = 1.2, 3.57
x2, y2 = 2.26, 8.7
print('{:-^40}'.format('輸出1'))
print('x1 = {}, y1 = {}'.format(x1, y1))
print('x2 = {}, y2 = {}'.format(x2, y2))
print('{:-^40}'.format('輸出2'))
print('x1 = {:.1f}, y1 = {:.1f}'.format(x1, y1))
print('x2 = {:.1f}, y2 = {:.1f}'.format(x2, y2))
print('{:-^40}'.format('輸出3')) # {:-^40}
print('x1 = {:<15.1f}, y1 = {:<15.1f}'.format(x1, y1))
print('x2 = {:<15.1f}, y2 = {:<15.1f}'.format(x2, y2))
print('{:-^40}'.format('輸出3'))
print('x1 = {:>15.1f}, y1 = {:>15.1f}'.format(x1, y1))
print('x2 = {:>15.1f}, y2 = {:>15.1f}'.format(x2, y2))

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*'=')

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)

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

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'))

from math import sqrt
n = float(input('輸入一個(gè)數(shù):'))
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}')

from math import pi
text = '''
        好奇心是人的天性。
        理想情況下，學(xué)習(xí)新東西是讓人愉快的事。
        但學(xué)校里的學(xué)習(xí)似乎有點(diǎn)像苦役。
        有時(shí)候，需要畫(huà)一個(gè)大餅，每次嘗試學(xué)一些新鮮的，才會(huì)每天變得更好一點(diǎn)點(diǎn)。
       '''
print(text)
r = float(input('給學(xué)習(xí)畫(huà)一個(gè)大餅，大餅要做的很大，半徑要這么大: '))
circle = 2*pi*r
print(f'繞起來(lái)，大餅的圓周有這么長(zhǎng), {circle}, 夠不夠激發(fā)你探索未知的動(dòng)力...')

import math

p=1.038
c=3.7
k=0.0054
m1=47 # 小雞蛋的重量
m2=67 # 大雞蛋的重量
Tw=100
Ty=70
t0=int(input("輸入雞蛋原始溫度:"))
t=m2**(2/3)*c*p**(1/3)*math.log(0.76*(t0-Tw)/(Ty-Tw))/math.log(math.e)/(k*math.pi**2*(4*math.pi/3)**(2/3))
print(f"T0= {t0} °C,t = {t // 60:2g} 分 {t % 60:.0f}秒")