静态代码块
https://www.cnblogs.com/bigdata-stone/p/10458380.html
https://blog.csdn.net/qq_35868412/article/details/89360250
foreach循环
https://segmentfault.com/a/1190000020149527?utm_source=tag-newest
静态代码块
https://www.cnblogs.com/bigdata-stone/p/10458380.html
https://blog.csdn.net/qq_35868412/article/details/89360250
foreach循环
https://segmentfault.com/a/1190000020149527?utm_source=tag-newest