update by: study

Author: ranlh

gendomains.py

@@ -0,0 +1,39 @@
+import random
+
+order = input("Please input:\n 字母加数字选择 1：\n 全字母选择2：\n 全数字选择3：\n 清空文本按 d: ")
+tmplist = []
+
+list1 = ['z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a','1','2','3','5','6','7','8','9']
+
+list2 = ['z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a']
+
+list3 = ['1','2','3','5','6','7','8','9']
+
+namepath ='C:\\users\\hoo\desktop\\domains.txt'
+
+if order == '1':
+	tmplist = list1
+elif order == '2':
+	tmplist = list2
+elif order == '3':
+	tmplist = list3
+elif order == 'd':
+	print('正在清除数据...')
+	with open(namepath, 'w') as f:
+		f.write('')
+	print('完成 ！')
+def write_txts():
+	tname = set()
+	num = input("Please input 生成长度:")
+	startstr = input("enter startstr: ")
+	endstr = input("enter endstr: ")
+	print("Please wait a moument")
+	for i in range(590):
+		ch = startstr + ''.join(i for i in random.sample(tmplist, int(num))) + endstr
+		tname.add(ch)
+	print("All about %s donames." % len(tname))
+	for ch in tname:
+		with open(namepath, 'a') as f:
+			f.write(ch+'\n')
+if order != 'd':
+	write_txts()

recur.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# 利用递归函数计算阶乘
+# N! = 1 * 2 * 3 * ... * N
+def fact(n):
+    if n == 1:
+        return 1
+    return n * fact(n-1)
+
+print('fact(5) =', fact(5))
+
+# 利用递归函数移动汉诺塔:
+def move(n, a, b, c):
+    if n == 1:
+        print('move', a, '-->', c)
+    else:
+        move(n-1, a, c, b)
+        move(1, a, b, c)
+        move(n-1, b, a, c)
+
+move(2, 'A', 'B', 'C')