runtulaoye的博客

python#使用thread模块创建线程

runtulaoye — Sun, 04 Jul 2021 20:12:50 +0800

import _thread from time import sleep, ctime def thread1(): print('线程1开始：', ctime()) print('线程1挂起4秒') sleep(4) print('线程1结束：', ctime()) def thread2(): print('线程2开始：', ctime()) print('线程2挂起2秒') sleep(2) print('线程2结束：', ctime(

python#斐波那契数列

runtulaoye — Sat, 03 Jul 2021 20:43:54 +0800

def fibonacci_seq(n): if n == 1 or n == 2: return 1 else: return fibonacci_seq(n - 1) + fibonacci_seq(n - 2) nums = [ ] for i in range(1, 11): nums.append(fibonacci_seq(i)) print(nums)

用pytho写出0~100里面所有的奇数。

runtulaoye — Sat, 03 Jul 2021 15:40:10 +0800

a = [] for i in range(1, 100 + 1, 2): a.append(i) print('列表a:', a) b = [] for j in range(1, 100 + 1): if j % 2 == 1: b.append(j) print('列表b:', b)

python编写 input()和 output()函数输入，输出 5 个学生的数据记录。

runtulaoye — Wed, 30 Jun 2021 20:45:24 +0800

#编写 input()和 output()函数输入，输出 5 个学生的数据记录。 student_list = [] def std_input(): name = input('student name:') number = input('student number:') score = input('student score:') student_dict = {'name': name, 'number':number, 'score':score} st

python题目n 个人围成一圈，顺序排号。从第一个人开始报数（从 1 到 3 报数），凡报到 3 的人退出圈子，问最后留下的是原来第几号的那位。

runtulaoye — Wed, 30 Jun 2021 20:20:28 +0800

# n 个人围成一圈，顺序排号。从第一个人开始报数（从 1 到 3 报数），凡报到 3 的人退出圈子，问最后留下的是原来第几号的那位。 n = int(input("please set the number of players:")) game = [] for i in range(n): game.append(i + 1) sign = 0 order = 0 out_players = 0 while out_players < n - 1: if game[order]

PYTHON#按照大小顺序输出三个数字

runtulaoye — Wed, 30 Jun 2021 17:46:58 +0800

#按照大小顺序输出三个数字 n1 = int(input(‘n1 = :’)) n2 = int(input(‘n2 = :’)) n3 = int(input('n3 = ')) def swap(p1, p2): return p2, p1 if n1 > n2:n1, n2 = swap(n1, n2) if n1 > n3:n1,n3 = swap(n1, n3) if n2 > n3:n2, n3 = swap(n2, n3) print(n1, n2, n3) ...

python#利用ellipse 和rectan 画图

runtulaoye — Mon, 28 Jun 2021 15:28:51 +0800

#利用ellipse 和rectan 画图 if __name__ == '__main__': from tkinter import * canvas = Canvas(width = 400, height = 600, bg = 'white') left = 20 right = 50 top = 50 num = 15 for i in range(num): canvas.create_oval(250- right, 2

python用tkinter画椭圆

runtulaoye — Mon, 28 Jun 2021 11:18:22 +0800

#画椭圆 from tkinter import * top = 180 bottom = 180 canvas = Canvas(width = 600, height = 600, bg = 'white') for i in range(10): canvas.create_oval(300-top, 300-bottom, 300 + top, 200+bottom) top -= 5 bottom += 5 canvas.pack() mainloop()

python打印出杨辉三角

runtulaoye — Sun, 27 Jun 2021 21:45:15 +0800

#打印出杨辉三角 N = [1] for i in range(10):#打印10行 M = [str(i) for i in N]#将数组转化为字符串 print(','.join(M))#打印直角三角形样子的杨辉三角 M = ''.join(M)#转化为以空格为间隔的字符串 M_middle = M.center(100)#将字符串编程一个长度为100的字符串，并使其居中 print(M_middle)#打印等腰三角形样子的杨辉三角 N.append(0

python#计算字符串长度

runtulaoye — Sun, 27 Jun 2021 21:38:29 +0800

#计算字符串长度 s = 'string' print(len(s))

python#输出一个随机数

runtulaoye — Sun, 27 Jun 2021 15:39:59 +0800

#输出一个随机数 import random a = random.uniform(100, 200) print(a)

python使用lambda创建函数

runtulaoye — Sun, 27 Jun 2021 15:31:18 +0800

#使用lambda创建函数 f1 = lambda a, b: a + b f2 = lambda a, b, c, d : a + b + c -(c + d) a, b, c, d = 21, 32, 44, 28 print(f1(a, b,)) print(f2(a, b, c, d))

PYTHON#数字比较

runtulaoye — Sun, 27 Jun 2021 15:28:25 +0800

#数字比较 a = float(input('Input number a:')) b = float(input('Input number b:')) if a > b: print('d%>d%'%(a, b)) elif a < 1b: print('d%

python变量值互换

runtulaoye — Sat, 26 Jun 2021 23:26:11 +0800

#变量值互换 def f(a, b): a, b = b, a return a, b x = 12 y = 32 x, y = f(x, y) print(x, y)

PYTHON输入数字的平方，如果平方运算后小于50则退出

runtulaoye — Sat, 26 Jun 2021 23:19:37 +0800

TRUE = 1 FALSE = 0 def PF(a): return a * a b = 1 while b: num = int(input('输入一个数字：')) print('运算结果为：', PF(num)) if PF(num) >= 50: b = TRUE else: b = FALSE

python#统计1到100之和。

runtulaoye — Sat, 26 Jun 2021 23:11:15 +0800

#统计1到100之和。 x = 101 * 50 print(x) y = 0 for i in range(1, 101): y += i print(y)

python#矩阵相加，两个3行3列的矩阵，实现其对应位置的数据相加，并返回一个新矩阵

runtulaoye — Sat, 26 Jun 2021 23:09:12 +0800

#矩阵相加，两个3行3列的矩阵，实现其对应位置的数据相加，并返回一个新矩阵 X = [[12, 7, 3], [4, 5, 6], [7, 8, 9]] Y = [[5, 8, 1], [6, 7, 3], [4, 5, 9]] Z = [[0, 0, 0],[0, 0, 0],[0, 0, 0]] for i in range(3): for j in range(3): Z[i][j] = X[i][j] + Y[i][j] print(Z

Python逆序输出列表

runtulaoye — Sat, 26 Jun 2021 12:02:28 +0800

#逆序输出列表 #将一个数组逆序输出 list = [1,3,2,4,5,4,122, 32, 93] list_re=list[::-1] print(list_re)

python矩阵运算,求一个3*3矩阵主对角线元素之和

runtulaoye — Wed, 23 Jun 2021 16:45:16 +0800

#矩阵运算 #求一个3*3矩阵主对角线元素之和 a = [] sum = 0.0 for i in range(3): a.append([]) for j in range(3): a[i].append(float(input("number:"))) for i in range(3): sum += a[i][i] print(a) print(sum)

python 对10个数进行排序

runtulaoye — Wed, 23 Jun 2021 16:39:14 +0800

#对10个数进行排序 list = [2, 7, 1, 4, 5, 9, 6, 25, 15, 3] print(list) for i in range(10): for j in range(i + 1, 10): min = list[i] if list[j] < min: temp = list[j] list[j] = list[i] list[i] = temp print(l