!(http://www.liebrother.com/upload/ef1e31512ff14b5da181fc36f9190e16_20171113.jpg)加不加synchronized有什么区别？(https://my.oschina.net/liebrother/blog/4253687)synchronized作为悲观锁，

转自：https://blog.csdn.net/u012706811/article/details/77096257(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fblog.csdn.net%2Fu012706811%2Farticle%2Fdetails%2F77096257)

转载请注明出处：http://blog.csdn.net/xingjiarong/article/details/47679007(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fblog.csdn.net%2Fxingjiarong%2Farticle%2Fdetails%2F4

最近用了下Charles断点调试，感觉挺方便的，在这做下分享1.给需要接口打断点!(https://images2018.cnblogs.com/blog/1225550/201805/122555020180528192112081117669075.png)2.打完断点后检查Charles断点开启!(https://image

转自：https://blog.csdn.net/guowenyan001/article/details/19807555(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fblog.csdn.net%2Fguowenyan001%2Farticle%2Fdetails%2F198075

TechEmpower第19轮编程语言框架性能排行榜2020年5月28日正式发布,详见官方博客：https://www.techempower.com/blog/2020/05/28/frameworkbenchmarksround19/(https://www.oschina.net/action/GoToLink?urlhttps%3A%2

前一篇说到了Foundation框架中的NSDirctionary类：http://blog.csdn.net/jiangwei0910410003/article/details/41830179(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fblog.csdn.net%2Fjiang

PAT甲级1119，我先在CSDN上面发布的这篇文章：https://blog.csdn.net/weixin\_44385565/article/details/89737224(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fblog.csdn.net%2Fweixin_443855

转至：http://blog.csdn.net/xjj51296646/article/details/4241548(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fblog.csdn.net%2Fxjj51296646%2Farticle%2Fdetails%2F4241548)

SpringBoot学习博客地址：https://blog.csdn.net/h356363/category\_8916551.html!(https://oscimg.oschina.net/oscnet/42b516798b5482acb22a04e04f6c5c6cd8c.png)