英文文档: getattr(object, name[, default]) Return the value of the named attribute of object. name must be a string. If the string is the name of one of the object's attributes, the result is the value of that attribute. For example, getattr(x, 'foobar')…
英文文档: getattr(object, name[, default]) Return the value of the named attribute of object. name must be a string. If the string is the name of one of the object’s attributes, the result is the value of that attribute. For example, getattr(x, 'foobar')…
英文文档: range(stop) range(start, stop[, step]) Rather than being a function, range is actually an immutable sequence type, as documented in Ranges and Sequence Types — list, tuple, range. 说明: 1. range函数用于生成一个range对象,range类型是一个表示整数范围的类型. 2. 可以直接传入一个结束整数…
1.命令介绍 最近学习并使用了一个python的内置函数dir,首先help一下: 复制代码代码如下: >>> help(dir)Help on built-in function dir in module __builtin__: dir() dir([object]) -> list of strings Return an alphabetized list of names comprising (some of) the attributes of the…