This is done in Listing 7 with the alloc parameter.

这是在清单7中使用alloc参数完成的。

youdao

All objects are set to nil in the alloc method (or to zero for instance variables).

所有的对象都设置为零的分配方法(或零的实例变量)。

youdao

To create a new object (in this case, the string that will be returned), first alloc the object and then initialize it.

要创建一个新对象(这里是将返回的字符串)，首先分配对象，然后初始化对象。

youdao

With a little practice and appropriate textual searches, you can quickly develop an ability to validate source corpora for balanced *alloc() and free(), or new and delete.

通过少量的实践和适当的文本搜索，您能够快速验证平衡的 *alloc() 和free()或者new 和delete的源主体。

youdao

These are not as common as instance methods, but you will often see class methods that are factory methods for creating new instances of the class; this saves you from having to alloc and initialize.

它们不像实例方法那样常见，但您将会经常看到一些类方法，它们作为创建新的类实例的工厂方法；这免得您必须进行分配和初始化。

youdao

These are not as common as instance methods, but you will often see class methods that are factory methods for creating new instances of the class; this saves you from having to alloc and initialize.

它们不像实例方法那样常见，但您将会经常看到一些类方法，它们作为创建新的类实例的工厂方法；这免得您必须进行分配和初始化。

youdao