随笔分类 - Python
摘要：提供对操作系统进行调用的接口
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摘要：用于提供对Python解释器相关的操作： 进度条百分比
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摘要：1 #!/usr/bin/env python 2 import re 3 def f1(arg): 4 5 return 1 6 7 origin = "1 - 2 * ( ( 60 - 30 + ( -40.0 / 5 ) * ( 9 - 2 * 5 / 3 + 7 / 3 * 99 / 4 * 2998 + 10 * 568 / 14 )) - ( - 4 * 3...
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摘要：1 #!/usr/bin/env python 2 import re 3 r = "aasa da.5a5dfgfda ada" 4 ret = re.findall('a',r) 5 print(ret)#1.查找全部a 6 ret = re.findall('^a',r) 7 print(ret)# 2.^ 查找开头 8 ret = re.findall('a$',r) ...
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摘要：结果C:\Python35\python3.exe F:/Python/笔记1/a1.py3['asa', 'a']akda Process finished with exit code 0
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摘要：1 #!/usr/bin/env python 2 r = round(3.6) 3 #四舍五入 4 print(r) C:\Python35\python3.exe F:/Python/2day/c7.py 4 Process finished with exit code 0
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摘要：1 #!/usr/bin/env python 2 i = pow(2,5) 3 #求一个数的n次幂 4 print(i) C:\Python35\python3.exe F:/Python/2day/c6.py 32 Process finished with exit code 0
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摘要：1 #!/usr/bin/env python 2 obj = iter([11,22,33,44]) 3 #iter 创建一个可以被迭代的对象 4 print(obj) 5 r1 = next(obj) 6 print(r1) 7 8 结果:C:\Python35\python3.exe F:/Python/2day/c4.py 11 Process finished wi...
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摘要：1 #!/usr/bin/env python 2 import random 3 temp = "" 4 for i in range(6): 5 num = random.randrange(0, 4) 6 if num == 3 or num == 1: 7 ret1 = random.randrange(0, 10) 8 t...
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摘要：1 #!/usr/bin/env python 2 #ascii,对象类中找__repr__,获取其返回值 3 class Foo : 4 def __repr__(self): 5 return "hello" 6 7 obj = Foo() 8 r = ascii(obj) 9 print(r )
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摘要：二、装饰器多参数的使用（*arg, **kwargs） 结果为: abvc456123321789 结果为: abvc123321789456
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摘要：1 #!/usr/bin/env python 2 """a1 = 123 3 a2 = 456 4 temp = a1 5 a1 = a2 6 a2 = temp 7 print(a1, a2) 8 """ 9 # 冒泡排序 10 li = [11,22,33,7,342,432,2,5,14,15,31,55,23,5236] 11 m = 1 12 for t in ra...
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