标签：cep 调用 method hid color raise alt The justify
三个接口：
>>> help(getattr) Help on built-in function getattr in module __builtin__: getattr(...) getattr(object, name[, default]) -> value Get a named attribute from an object; getattr(x, ‘y‘) is equivalent to x.y. When a default argument is given, it is returned when the attribute doesn‘t exist; without it, an exception is raised in that case.
输出结果：
>>> from operator import methodcaller
>>> help(methodcaller) Help on class methodcaller in module operator: class methodcaller(__builtin__.object) | methodcaller(name, ...) --> methodcaller object | | Return a callable object that calls the given method on its operand. | After f = methodcaller(‘name‘), the call f(r) returns r.name(). | After g = methodcaller(‘name‘, ‘date‘, foo=1), the call g(r) returns | r.name(‘date‘, foo=1). | | Methods defined here: | | __call__(...) | x.__call__(...) <==> x(...) | | __getattribute__(...) | x.__getattribute__(‘name‘) <==> x.name | | ---------------------------------------------------------------------- | Data and other attributes defined here: | | __new__ = <built-in method __new__ of type object> | T.__new__(S, ...) -> a new object with type S, a subtype of T
例子：
>>> s = ‘abc123abc456‘ >>> s.find(‘abc‘,4) 6
>>> strfindabc4 = methodcaller(‘find‘,‘abc‘,4) #methodcaller创建一个对象，methodcaller（）第一个参数是要调用的函数方法的名字（字符串），其他参数是那个函数方法的参数。 >>> strfindabc4 <operator.methodcaller object at 0x0285ABC0> >>> strfindabc4(s) #再将原对象 作为参数传入 6
标签：cep 调用 method hid color raise alt The justify
原文地址：https://www.cnblogs.com/smulngy/p/9009238.html
