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)
#test1 x1,y1=1.2,3.57 x2,y2=2.26,8.7 # 输出1 print('{:-^40}'.format('输出1')) print('x1={},y1={}'.format(x1,y1)) print('x2={},y2={}'.format(x2,y2)) # 输出2 print('{:-^40}'.format('输出2')) print('x1 = {:.1f}, y1 = {:.1f}'.format(x1, y1)) print('x2 = {:.1f}, y2 = {:.1f}'.format(x2, y2)) # 输出3 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)) # 输出4 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))
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]') r3 = eval('"python"') print(type(r3), r3) r4 = eval('7, 42') print(type(r4), r4)
r1 = eval('1 + 2') print(type(r1), r1) r2 = eval('[1, 6, 7.5]') 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}')
# 字符编码相关 # chr()返回unicode编码对应的字符 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)) # ord()返回字符的unicode编码 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')) print(ord('1'), end = " ") print(ord('2'))
# 简单的数学计算 from math import sqrt n = float(input('输入一个数:')) # python中计算开平方的两种方式 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}')
# 神奇的pi, 与大饼 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('输入一个数字:')) y = x**365 print(f'x的356次方:{y}') x = eval(input('输入一个数字:')) y = x**365 print(f'x的356次方:{y}') x = eval(input('输入一个数字:')) y = x**365 print(f'x的356次方:{y}')1
ρ = 1.038 c = 3.7 K = 5.4*10 **(-3) Tw = 100 Ty = 70 M = 47 M = 67 T0=eval(input("温度最初为:")) from math import log from math import pi t=(M**(2/3)*c*(ρ)**(1/3))/(K*pi*pi*((4*pi)/3)**(2/3))*log(0.76*(T0-Tw)/(Ty-Tw)) b=int(t/60) h=int(t-b*60) print(f'T0={T0}℃,t={b}分{h}秒')