1 #显示跑马灯文字
2 import os
3 import time
4 def main():
5 content = str(input('输入显示内容：'))
6 while True:
7 os.system('cls')
8 print(content)
9 time.sleep(0.2)
10 content = content[1:] + content[0]
11 main()
12
13 #产生验证码
14 import random
15 def generate_code(code_len=4):
16 all_char = '1234567890qwertyuiopasdfghjklmnbvcxzQWERTYUIOPLKJHGFDSAZXCVBNM'
17 longs = len(all_char) - 1
18 code = ' '
19 for i in range(code_len):
20 index = random.randint(0,longs)
21 code += all_char[index]
22 return code
23 print(generate_code())
24
25 #返回文件后缀名(不好理解)
26 def get_file(filename,dot=False):
27 pos = filename.rfind('.')
28 print(pos)
29 if 0 < pos < len(filename) - 1:
30 index = pos if dot else pos + 1
31 return filename[index:]
32 else:
33 return ' '
34 print(get_file('ddd.py'))
35
36 #列表最大的两个数
37 def max(*lists):
38 longs = len(lists)
39 a = 0
40 b = 0
41 d=[]
42 for i in range(0,longs):
43 if lists[i] >=a:
44 a = lists[i]
45 for f in lists:
46 d.append(f)
47 d.remove(a)
48 for x in range(0,longs-1):
49 if d[x] >=b:
50 b = d[x]
51 return a,b
52 print(max(1,4,6,7,34,66,6))
53
54 #根据年月日确定是第几天
55 def is_leap_year(year):
56
57 return year % 4 == 0 and year % 100 != 0 or year % 400 == 0
58
59
60 def which_day(year, month, date):
61
62
63 days_of_month = [
64 [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
65 [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
66 ][is_leap_year(year)]
67 total = 0
68 for index in range(month - 1):
69 total += days_of_month[index]
70 return total + date
71
72
73 def main():
74 print(which_day(1980, 11, 28))
75 print(which_day(1981, 12, 31))
76 print(which_day(2018, 1, 1))
77 print(which_day(2016, 3, 1))
78
79
80 if __name__ == '__main__':
81 main()
82
83 #杨辉三角
84 def yanghui():
85 num= int(input('输入打印多少行：'))
86 yh = [[]]*num #准备num个二阶数组
87 for row in range(len(yh)): #打印num行的数据
88 yh[row] = [None] * (row + 1) #每一行显示的个数
89 for col in range(len(yh[row])): #打印每一行数据
90 if col == 0 or col == row: #第一列和索引相同处赋值为1
91 yh[row][col] = 1
92 else: #其他位置的值等于左上方的值加上正上方的值
93 yh[row][col] = yh[row-1][col] + yh[row-1][col-1]
94 print(yh[row][col], end = '\t')
95 print()
96
97 print(yanghui())
98
99 #机选双色球
100 from random import randrange, randint, sample
101 def function2(row):
102 for a, ball in enumerate(row): #循环索引和数值
103 if a == len(row) - 1:
104 print('|', end = ' ') #最后一位和前六位区分开
105 print('%02d' % ball, end=' ') #打印每位数值，不够2位用0表示
106 print()
107 def function1():
108 fw = [x for x in range(1, 34)] #定义取值区间
109 qian = []
110 qian = sample(fw, 6) #在区间内随机选取六个数
111 qian.sort()
112 qian.append(randint(1,16)) #随机选取确定最后一位数
113 return qian
114 def main():
115 number = int(input('机选几注：'))
116 for _ in range(number):
117 function2(function1())
118 print(main())
119
120 #正则表达式(提取电话号码)
121 import re
122 def main():
123 pattern = re.compile(r'(?<=\D)1[34578]\d{9}(?=\D)')
124 sentence = '''
125 通过学校3450054452975次的调查，\
126 发现5月28日号码13784932456\
127 给号码15875349204发过短信17438904720
128 '''
129 mylist = re.findall(pattern,sentence)
130 print(mylist)
131 for temp in pattern.finditer(sentence):
132 print(temp.group())
133 m = pattern.search(sentence)
134 while m:
135 print(m.group())
136 if __name__ == '__main__':
137 main()
