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('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) )
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('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}')
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。
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}, 够不够激发你探索未知的动力...')
x = eval(input('输入一个数x:'))
y = x**365
print(x,'的365次方:',y)
p = 1.038
c = 3.7
k = 5.4*10**-3
M = 67
Tw = 100
Ty = 70
T0 = int(input('输入一个温度T0:'))
x = (0.76*((T0-Tw)/(Ty-Tw)))
n = log(x,e)
t = ((M**2/3)*c*(p**1/3))/(k*(pi**2)*((4*pi/3)**2/3))*n
print('T0= C',T0 , 't=',t)
