python基础2-内置函数built-in function #abs()取绝对值print(abs(-1))#all()如果一个可迭代对象里的所有元素都为真,返回True,print(all([0,1,-1]))#非0就为真#any()如果一个可迭代对象里的任何一个元素为真,就返回True,print(any([]))#ascii() 与repr()一样,把一个对象变成
2.39 locals():更新和返回表示当前局部符号表的字典。当locals()在函数代码块中调用时会返回自由变量,但是在类代码块中不会。 2.40 map(function, iterable, ...): 1. 返回一个迭代器 2. 对iterable的每个项应用function,并yield结果。 2.41 max(): 返回iterable中的最大项或两个或更多个参数中最大的项。
eval(expression[, globals[, locals]]) execfile(filename[, globals[, locals]]) Help on built-in function execfile in module __builtin__: execfile(...) execfile(filename[, globals[, locals]]) Read and execute a Python script from a file. The globals and locals are dictionaries, defaulti...
例如,`vars(locals())`将返回一个包含当前全局变量的字典。 19. `zip(*iterables)`:将多个可迭代对象组合成元组的列表。例如,`zip(range(3), range(3))`将返回[(0, 0), (0, 1), (0, 2), (1, 0), (1, 1), (1, 2)]。 20. `*args`:将可变参数解包为元组。例如,`*args`将解包为...
Help on built-in function divmod in module builtins: divmod(...) divmod(x, y) -> (div, mod) Return the tuple ((x-x%y)/y, x%y). Invariant: div*y + mod == x. """ # 对象id a = 1 print(id(a)) # 1430299072 # 打印局部变量 ...
承接Python built-in functions D&E,继续探索python的内置函数。 26. file(name[, mode[, buffering]]) Constructor function for the file type, described further in section File Objects. The constructor’s arguments are the same as those of the open() built-in function described below. ...
locals()Returns an updated dictionary of the current local symbol table map()Returns the specified iterator with the specified function applied to each item max()Returns the largest item in an iterable memoryview()Returns a memory view object ...
简介:Python编程:Built-in Functions内建函数小结 Built-in Functions(68个) 1、数学方法 abs() sum() pow() min() max() divmod() round() 2、进制转换 bin() oct() hex() 3、简单数据类型 - 整数:int() - 浮点数:float() - 字符\字符串:str() repr() ascii() ord() chr() format() ...
If both dictionaries are omitted, the expression is executed in the environment where execfile() is called. The return value is None.Note The default locals act as described for function locals() below: modifications to the default locals dictionary should not be attempted. Pass an explicit ...
vars() locals() globals() callable()__import__() 参考:https://docs.python.org/3.5/library/functions.html print(abs(-1))# 绝对值 1print(divmod(5,2))# 取商和余数 (2, 1)# 四舍五入print(round(1.4))# 1print(round(1.5))# 2print(round(1.6))# 2# 次方,相当于x**yprint(pow(2...