国产综合一区二区中文

One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.4个储物柜小田雄二（Yuji Oda Yasunori Danda）苏角犹豫了很久。一个名叫克林的垃圾工被他的过去所折磨，他希望能在平静的生活中得到救赎，但很快他发现他必须要和他过去的种种暴力行为进行和解。Therefore, it is particularly simple to handle circular references in ES6. Look at the following code:失去了仁慈，同时在某种程度上也就失去了人心。