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# blog
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## database
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+
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### mysql
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- [ MySQL用户授权相关] ( database/MySQL用户授权相关.md )
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+ ### nosql
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+
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+ #### neo4j
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+ - [ noe4j-cypher] ( database/nosql/neo4j/cypher.md )
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+
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## lang
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### Java
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### axure
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## life
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- - [ movie] ( life/movie.md )
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+ - [ movie] ( life/movie.md )
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+ - [ book] ( life/book.md )
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+ # 常用接口芯片
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+ > 2016-06-21 22:27:19
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+ - 8251A 串行通信接口芯片
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+ - 8255A 并行通信接口芯片
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+ - 8259A 中断控制接口芯片
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+ - 8237A DMA控制接口芯片
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+ - 8253 计时/定时接口芯片
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+ - DA0832 D/A数模转换接口芯片
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+ - AD0809 A/D模数转换接口芯片
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+ 这些芯片都是当时兼容8086/8088的intel芯片。现在出现了各样式的有上述功能的芯片...不能只认为是这种功能的只有这几片...
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+ # Neo4j之Cypher语句
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+
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+ > 2018年01月13日 17:42:02
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+
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+ ## 创建一个标签是Port,属性有name=8080的节点
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+ ```
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+ CREATE (n:Port {name:"8080"}) RETURN n
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+ ```
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+ ## 创建一个标签是Program,属性有name=tomcat的节点
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+ ```
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+ CREATE (n:Program {name:"Tomcat"}) RETURN n
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+ ```
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+ ## 创建8080端口与tomcat程序之间的关系
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+ ```
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+ MATCH (a:Port {name:"8080"}),
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+ (b:Program {name:"Tomcat"})
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+ CREATE (a)-[r:UserdBy]->(b)
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+ RETURN a,r,b
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+ ```
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