五月天图片 婷婷丁香

Lin Wei, founder of Golden Rainforest: "Recently, the country has issued a series of policies to rectify the off-campus training of K12 disciplines. However, the market demand is great, and counseling agencies of various disciplines are also seeking transformation. Therefore, quality education including thinking ability training will enter a faster development stage in the future. However, compared with subject counseling, the training of thinking ability is more comprehensive and the training process is more complicated. Therefore, higher requirements are put forward for the professional ability and industry cognition of industry practitioners. "A. Men: air pistol (10m), pistol rapid fire (25m), pistol slow fire (50m), air rifle (10m), small caliber optional rifle 3 × 40 (50m), small caliber rifle 60 horizontal fire (50m), 10m moving target, flying saucer double multi-directional, flying saucer multi-directional, flying saucer two-way;Public Original (String value) {BaiDuInterview.prototype.init = function () {恳请皇上让他返京静修几年，以化解平定心头戾气。也不知黄豆咋想的，说再想想。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.