PyPratice1

1.1

str1 = input("输入一个人名：") str2 = input("输入一个国家名：") print("世界那么大{}想去{}看看。".format(str1,str2))

1.2

n = input("请输入一个数：") sum = 0 for i in range(int(n)): sum += i+1 print("和为：",sum)

1.3

for i in range(1,10): for j in range(1,i+1): print("{}{} = {} ".format(j,i,ij),end='') print(" ")

1.4

temp,sum = 1,0 for i in range(1,11): temp *= i sum += temp print("一到十的阶乘为：{}".format(sum))

1.5

n = 1 for i in range(5): n = (n+1)*2 print(n) print("\n")

m = 1 for i in range(5,0,-1): m = (m+1)<<1 print(n)

1.6

diet = ['牛扒','虾仁','肉丸','米饭','github'] for x in range(0,5): for y in range(0,5): if not(x == y): print("{}配{}，是最棒的了".format(diet[x],diet[y]))

1.7

from turtle import * fillcolor("red") begin_fill() while True: forward(200) right(144) if abs(pos())<1: break end_fill()

1.8

from turtle import * color('red','yellow') begin_fill() while True: forward(200) left(170) if abs(pos())<1: break end_fill() done()

1.9

import turtle import time turtle.speed("fastest") turtle.pensize(2) for x in range(100): turtle.forward(2*x) turtle.left(90) time.sleep(3)

1.10

import turtle import time turtle.pensize(2) turtle.bgcolor("black") colors = ["red","yellow","purple","blue"] turtle.tracer(False) for x in range(400): turtle.forward(2*x) turtle.color(colors[x%4]) turtle.left(91) turtle.tracer(True)