这里当前工作目录设置为C:\Users\Al\AppData\Local\Programs\Python\Python37,所以文件名project.docx指的是C:\Users\Al\AppData\Local\Programs\Python\Python37\project.docx。当我们将当前工作目录改为C:\Windows\System32时,文件名project.docx解释为C:\Windows\System32\project.docx。 如果您尝试更改到一个不...
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importasyncioimporttimeasyncdefwork(name,hour):print('%s 延时%s秒'%(name,hour))awaitasyncio.sleep(hour)return'%s 执行完毕'%nameasyncdefrun():name_list=['Chancey','Wanger','SuXin','Zxx']coroutine_list=[]forhourinrange(1,5):hour=hour name=name_list[hour-1]coroutine_list.append(work(name...
class MyEncode(json.JSONEncoder): def default(self, o): # return {"name":,"age":o.age} return o.__dict__ class Person(object): def __init__(self, name, age): = name self.age = age def eat(self): print(+'正在吃东西') p1 = Person('zhangsan', 18) # 自定义对象想要转换成...
例:如:C:/Users/chris/AppData/Local/Programs/Python/Python37/python.exe,从电脑的盘符开始,表示的就是一个绝对路径。 相对路径:是从当前文件所在的文件夹开始的路径 test.txt,是在当前文件夹查找 test.txt 文件 ./test.txt,也是在当前文件夹里找test.txt 文件,./表示的是当前文件夹。
# Example #1 class FastClass: def do_stuff(self): temp = self.value # this speeds up lookup in loop for i in range(10000): ... # Do something with `temp` here # Example #2 import random def fast_function(): r = random.random for i in range(10000): print(r()) # calling `...
For Loop While Loop Nested Loop 5. Python Functions In Python, Functions are generally reusable blocks of code that can perform a specific task based on the requirement. They are one of the most powerful features of Python, that generally enables you to break down large programs into smaller,...
绝对路径:指的是绝对位置,完整地描述了目标的所在地,所有目录层级关系是一目了然的。比如: C:/Users/chris/AppData/Local/Programs/Python/Python37/python.exe 相对路径:是从当前文件所在的文件夹开始的路径。 test.txt:是在当前文件夹查找 test.txt 文件。
立即登录 没有帐号,去注册 编辑仓库简介 简介内容 JPype is cross language bridge to allow Python programs full access to Java class libraries. 主页 取消 保存更改 1 https://gitee.com/mirrors/jpype.git git@gitee.com:mirrors/jpype.git mirrors jpype JPype master北京...
class collections.defaultdict([default_factory[, ...]]) Returns a new dictionary-like object. defaultdict is a subclass of the built-in dict class. It overrides one method and adds one writable instance variable. The remaining functionality is the same as for the dict class and is not docume...