英文文档：isinstance(object, classinfo)Return true if the object argument is an instance of the classinfo argument, or of a (...
英文文档：class int(x=0) class int(x, base=10)Return an integer object constructed from a number or string x, or return 0 if...
介绍在python中，所有以“”双下划线包起来的方法，都统称为“magic method”,例如类的初始化方法 init ,python中所有的魔术方法均在官方文档中有相应描述，但是对于官方的描述比较混乱而且组织比较松散。很难找到有一个例子...
英文文档：input([prompt]) If the prompt argument is present, it is written to standard output without a trailing newline. The...
总结一下内置函数，build-in function。一、数学运算类abs(x)求绝对值complex([real[, imag]])创建一个复数pmod(a, b)分别取商和余数注意：整型、浮点型都可以float([x])将一个字符串或数...
英文文档：hex(x)Convert an integer number to a lowercase hexadecimal string prefixed with “0x”, for exampleIf x is not a Pyth...
英文文档：help([object]) Invoke the built-in help system. (This function is intended for interactive use.) If no argument is...
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...
英文文档：hasattr(object, name)The arguments are an object and a string. The result is True if the string is the name of one...
英文文档：globals()Return a dictionary representing the current global symbol table. This is always the dictionary of the cur...
