随笔分类 - Python内置函数详解
详解Python的内置函数,使用的是3.5版本
摘要:英文文档: help([object]) Invoke the built-in help system. (This function is intended for interactive use.) If no argument is given, the interactive help s
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摘要:英文文档: hash(object)Return the hash value of the object (if it has one). Hash values are integers. They are used to quickly compare dictionary keys duri
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摘要:英文文档: 2. 函数实际上是调用getattr(object,name)函数,通过是否抛出AttributeError来判断是否含有属性。
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摘要:英文文档: 2. 函数第三个参数default为可选参数,如果object中含义name属性,则返回name属性的值,如果没有name属性,则返回default值,如果default未传入值,则报错。
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摘要:英文文档: 2. 不传入参数时,生成的空的不可变集合。
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摘要:英文文档: format(value[, format_spec]) Convert a value to a “formatted” representation, as controlled by format_spec. The interpretation of format_spec wi
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摘要:英文文档: class float([x]) Return a floating point number constructed from a number or string x. If the argument is a string, it should contain a decimal
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摘要:英文文档: filter(function, iterable) Construct an iterator from those elements of iterable for which function returns true. iterable may be either a seque
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摘要:英文文档: 2. 第一个参数为语句字符串,globals参数和locals参数为可选参数,如果提供,globals参数必需是字典,locals参数为mapping对象。 3. globals参数用来指定代码执行时可以使用的全局变量以及收集代码执行后的全局变量 4. locals参数用来指定代码执行时
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摘要:英文文档: This function can also be used to execute arbitrary code objects (such as those created by compile()). In this case pass a code object instead o
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摘要:英文文档: enumerate(iterable, start=0) Return an enumerate object. iterable must be a sequence, an iterator, or some other object which supports iteration
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摘要:英文文档: divmod(a, b) Take two (non complex) numbers as arguments and return a pair of numbers consisting of their quotient and remainder when using inte
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摘要:英文文档: dir([object]) Without arguments, return the list of names in the current local scope. With an argument, attempt to return a list of valid attrib
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摘要:英文文档: class dict(**kwarg) class dict(mapping, **kwarg) class dict(iterable, **kwarg) Return a new dictionary initialized from an optional positional a
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摘要:英文文档: 2. 当属性不存在的时候,会报错。 3. 不能删除对象的方法。
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摘要:英文文档: class complex([real[, imag]]) Return a complex number with the value real + imag*1j or convert a string or number to a complex number. If the fi
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摘要:英文文档: compile(source, filename, mode, flags=0, dont_inherit=False, optimize=-1)
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摘要:英文文档: classmethod(function) Return a class method for function. A class method receives the class as implicit first argument, just like an instance me
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摘要:英文文档: 2. 它的功能与ord函数刚好相反 3. 传入的参数值范围必须在0-1114111(十六进制为0x10FFFF)之间,否则将报ValueError错误
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