1.导入方法:https://blog.csdn.net/deng11408205/article/details/79723213
2.报错1:无效的源版本: 8
解决方案:project sdk 和 project language level 需要保持一致,https://blog.csdn.net/sinat_23870171/article/details/80331838
3.报错2:非法字符 65279
解决方案:https://www.cnblogs.com/jiaoyiping/p/3387023.html
4.报错3:syntax error on token 'Invalid Character' ,delete this token
解决方案:https://www.cnblogs.com/chenmingjun/p/9952948.html,用bomremover.exe转换编码格式