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https://git-scm.com/book/zh/v1/Git-%E5%B7%A5%E5%85%B7-%E9%87%8D%E5%86%99%E5%8E%86%E5%8F%B2 binarySearch & comparator 数组与int型相乘 1.计算每一位的结果 2.进位和留位

//732*16
int[] ints = new int[6]
ints[ints.length-1]=2
ints[ints.length-2]=3
ints[ints.length-3]=7
ALTER USER postgres SET search_path TO portal;
```java
		Map<Integer, List<SqlDboGoodsCategory>> groupBy = resultList.stream()
				.collect(Collectors.groupingBy(SqlDboGoodsCategory::getDeletedFlg));
## 学习spring boot的文档
[gitbook](https://doc.yonyoucloud.com/doc/Spring-Boot-Reference-Guide/I.%20Spring%20Boot%20Documentation/1.%20About%20the%20documentation.html)

[史上最佳](https://docs.spring.io/spring-boot/docs/current/reference/)
vue资源精选，感觉还不错：
http://vue.awesometiny.com/

https://blog.csdn.net/liang890806/article/details/46813039

https://blog.csdn.net/u013066244/article/details/52450142

https://zhidao.baidu.com/question/876258859487076852.html

中文变量名：
https://stackoverflow.com/questions/29453894/using-unicode-as-java-variables
http://www.iteye.com/problems/64946
https://stackoverflow.com/questions/21526799/using-utf-8-characters-in-java-variable-names
https://stackoverflow.com/questions/4067628/how-to-use-chinese-and-japanese-character-as-string-in-java
http://xahlee.info/java-a-day/unicode_in_java.html

quasar-framework frontend UI library http://quasar-framework.org/quasar-play/apple/index.html#/showcase/buttons/btn-group https://stackoverflow.com/questions/24122586/how-to-represent-the-spring-security-custom-filter-using-java-configuration http://www.postgres.cn/docs/9.6/transaction-iso.html

linux下去掉BOM头：find . -type f -exec sed -i 's/\xEF\xBB\xBF//' {} \; https://yq.aliyun.com/ziliao/29338