日韩欧美一级毛片

我想来想去，觉得淼淼那女娃不错，跟咱板栗般配。听着身后黑子的叫声，小娃儿努力扭头往后看——目光穿过不停摇晃的草木树干，依稀见到黑子就在狼后不远，他奋劲大喊：黑——子——快——小——灰——黑子听见小主人凄厉的叫声，狂吼一声，骤然发力。卫讼师恨极了他，只觉什么事到了他嘴里，都成了有理有据的正经行为，真是比他这个老讼师还要奸诈狡猾。回来追杀我们更是容易暴露，难保他们的头目不会有别的想法。却对枫叶道：放下，出去吧。D > B enters the synchronized block, and since instance is not null at this time, it immediately leaves the synchronized block and returns the result to the program calling the method. E > At this point, thread B intends to use the Singleton instance, only to find that it has not been initialized, so an error occurs. Therefore, there is still the possibility of errors in the program. In fact, the running process of the program is very complicated. From this, we can see that it is more difficult and challenging to write programs especially in multi-threaded environment. We further optimized the program: