流程图

[gv=dot]digraph idp_modules{
rankdir = TB;
fontname = "Microsoft YaHei";
fontsize = 12;
  
node [ fontname = "Microsoft YaHei", fontsize = 12, shape = "record" ];
edge [ fontname = "Microsoft YaHei", fontsize = 12 ];
  
     subgraph cluster_sl{node [ fontname = "Microsoft YaHei", fontsize = 12, shape = "record" ];
edge [ fontname = "Microsoft YaHei", fontsize = 12 ];
         label="IDP支持层";
         bgcolor="mintcream";
         node [shape="Mrecord", color="skyblue", style="filled"];
         network_mgr [label="Network Manage"];
         log_mgr [label=" 日志管理器"];
         module_mgr [label=" 模块管理器"];
         conf_mgr [label=" 配置管理器"];
         db_mgr [label= " 数据库管理器"];
     };
  
     subgraph cluster_md{
node [ fontname = "Microsoft YaHei", fontsize = 12, shape = "record" ];
edge [ fontname = "Microsoft YaHei", fontsize = 12 ];
         label="可插拔模块集";
         bgcolor="lightcyan";
         node [color="chartreuse2", style="filled"];
         mod_dev [label=" 开发支持模块"];
         mod_dm [label=" 数据建模模块"];
         mod_dp [label= " 部署发布模块"];
     };
  
mod_dp -> mod_dev [label="依赖..."];
mod_dp -> mod_dm [label="依赖..."];
mod_dp -> module_mgr [label="安装...", color="yellowgreen", arrowhead="none"];
mod_dev -> mod_dm [label="依赖..."];
mod_dev -> module_mgr [label="安装...", color="yellowgreen", arrowhead="none"];
mod_dm -> module_mgr [label="安装...", color="yellowgreen", arrowhead="none"];
  
}[/gv]

代码：

digraph idp_modules{
rankdir = TB;
fontname = "Microsoft YaHei";
fontsize = 12;
  
node [ fontname = "Microsoft YaHei", fontsize = 12, shape = "record" ]; 
edge [ fontname = "Microsoft YaHei", fontsize = 12 ];
  
     subgraph cluster_sl{
         label="IDP支持层";
         bgcolor="mintcream";
         node [shape="Mrecord", color="skyblue", style="filled"];
         network_mgr [label="网络管理器"];
         log_mgr [label="日志管理器"];
         module_mgr [label="模块管理器"];
         conf_mgr [label="配置管理器"];
         db_mgr [label="数据库管理器"];
     };
  
     subgraph cluster_md{
         label="可插拔模块集";
         bgcolor="lightcyan";
         node [color="chartreuse2", style="filled"];
         mod_dev [label="开发支持模块"];
         mod_dm [label="数据建模模块"];
         mod_dp [label="部署发布模块"];
     };
  
mod_dp -> mod_dev [label="依赖..."];
mod_dp -> mod_dm [label="依赖..."];
mod_dp -> module_mgr [label="安装...", color="yellowgreen", arrowhead="none"];
mod_dev -> mod_dm [label="依赖..."];
mod_dev -> module_mgr [label="安装...", color="yellowgreen", arrowhead="none"];
mod_dm -> module_mgr [label="安装...", color="yellowgreen", arrowhead="none"];
  
}

[gv=dot]
digraph {
  "A" [shape="circle"];
  "B" [shape="rectangle"];
  "C" [shape="diamond"];

  "A" -> "B" [label="A to B"];
  "B" -> "C" [label="B to C"];
  "A" -> "C" [label="A to C"];
}[/gv]

代码：

digraph {
  "A" [shape="circle"];
  "B" [shape="rectangle"];
  "C" [shape="diamond"];

  "A" -> "B" [label="A to B"];
  "B" -> "C" [label="B to C"];
  "A" -> "C" [label="A to C"];
}

[gv=dot]digraph G{fontname="SimSun";"中a文"->"英文";}[/gv]

http://blog.csdn.net/spacecraft/article/details/25163293