# 获取散列值res = hash(1)print(res) # 1res = hash("Tom") # -1433634475463391166print(res)# 不可变集合st = frozenset([1,2,3,4])print(type(st)) # <class 'frozenset'># 生成列表lst1 = []lst2 = list()lst3 = list((1,2,3))print(lst1) # []print(lst2) # []print(lst3)...
print(eval('x+1'))'''#exec:支持python代码的动态执行,执行存储在字符串或者文件中的Python语句#python3 中没有reduce函数#filter(function, iterable) 见有道云笔记map filter reduce#map(function, iterable) # 将参数传至function里面处理,并且返回的是一个可迭代类型'''a = map(lambda x: x**2, [1,...
'b': bytearray(b'dbc'), 'lamb': <function <lambda> at 0x00000000024E8730>, '__package__': None, 'st': frozenset({1, 2, 3, 4}), ... """ code = """ for i in range(5): print(i, end=" ") """ exec(code) # 运行代码 0 1 2 3 4 x = 1 print("eval:", eval(...
今天写几行代码解决工作问题,程序运行报报'builtin_function_or_method' object is not subscriptable 错误, 将代码简写如下 litterPigs =[]forboarinrange(0,6): pig=[1,2,3,5]print(pig)try: litterPigs.append[pig]exceptBaseException as e:print(e) 运行结果为: 差了半天原因,最后发现是括号写错了,l...
For use cases that are not supported by existing built-in functions, consider defining a custom function. See What are user-defined functions (UDFs)?. Also see: Alphabetical list of built-in functions Operators and predicates For information on how operators are parsed with respect to ...
问在文件上传中获取“builtin_function_or_method对象不可迭代”EN我无法上传该文件。我得到了很难说您...
第一个参数 function 以参数序列中的每一个元素调用 function 函数,返回包含每次 function 函数返回值的新列表。 语法 map(function, iterable, ...) 参数: function:函数 iterable:可迭代的 返回值: Python 2.x 返回列表。 Python 3.x 返回迭代器。 示例 iter1 = map(lambda x: x * 2, [1, 2, 3...
Execute built-in function from overloaded method collapse all in pageSyntax builtin(function,x1,...,xn) [y1,...,yn] = builtin(function,x1,...,xn)Description builtin(function,x1,...,xn) executes the built-in function with the input arguments x1 through xn. Use builtin to execute the...
The @staticmethod form is a function decorator – see the description of function definitions in Function definitions for details. It can be called either on the class (such as C.f()) or on an instance (such as C().f()). The instance is ignored except for its class. ...
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