使用getInstance()方法的原因及作用
java中getInstance() 的理解
https://blog.csdn.net/TTTZZZTTTZZZ/article/details/87883519?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromBaidu-1.control&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromBaidu-1.control
https://blog.csdn.net/qq_45680802/article/details/104362938?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1.control&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1.control
使用getInstance()方法的原因及作用
https://blog.csdn.net/su_Allen/article/details/44982543?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.control&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.control
getInstance()得理解
原文：https://www.cnblogs.com/sweet6/p/14049147.html
