基于GOJS封装的流程图设计（展示）工具类，主要分为两个工具类：
工具库依赖于go.js、jquery以及layer.js
###希望支持FlowDiagram的童鞋能够到Github给我们一个star^_^ https://github.com/mengmakies/FlowDiagram
流程设计器操作指南:
- 在任意位置双击设计器空白处：新建步骤；
- 选中步骤，单击右键：弹出右键菜单；
- 鼠标滑过步骤，显示连接点，拖动连接点即可创建新的连接线；
- 鼠标滑过步骤：显示tooltip。
##流程图数据
{ "class": "go.GraphLinksModel",
"modelData": {"position":"-5 -5"},
"nodeDataArray": [
{"key":"1", "text":"开始", "figure":"Circle", "fill":"#4fba4f", "stepType":1, "loc":"90 110"},
{"key":"2", "text":"结束", "figure":"Circle", "fill":"#CE0620", "stepType":4, "loc":"770 110"},
{"key":"3", "text":"填写请假信息 ", "loc":"210 110", "remark":""},
{"key":"4", "text":"部门经理审核 ", "loc":"370 110", "remark":""},
{"key":"5", "text":"人事审核 ", "loc":"640 110", "remark":""},
{"key":"6", "text":"副总经理审核 ", "loc":"510 40", "remark":""},
{"key":"7", "text":"总经理审核 ", "loc":"500 180", "remark":""}
],
"linkDataArray": [
{"from":"1", "to":"3"},
{"from":"3", "to":"4"},
{"from":"4", "to":"5"},
{"from":"5", "to":"2"},
{"from":"4", "to":"6", "key":"1001", "text":"小于5天 ", "remark":"", "condition":"Days<5"},
{"from":"6", "to":"5"},
{"from":"4", "to":"7", "key":"1002", "text":"大于5天 ", "remark":"", "condition":"Days>5"},
{"from":"7", "to":"5"}
]}
var areaFlow = document.getElementById('mySavedModel');
var myDesigner= new FlowDesigner('myFlowDesignerDiv');// 流程图设计器
myDesigner.initToolbar('myPaletteDiv');// 初始化控件面板
myDesigner.displayFlow(areaFlow.value);// 在设计面板中显示流程图 var areaFlow = document.getElementById('mySavedModel');
var myDisplay = new FlowDisplay('myDisplayDiv');// 流程图显示器
var flowPath = '3,4,6,5';// 3,4,6,5是步骤的id，最后一个步骤为"待处理"或"已完成"的步骤
var isCompleted = false;// "待处理"或"已结束"
myDisplay.loadFlow(areaFlow.value);// 显示流程图
myDisplay.animateFlowPath(flowPath, isCompleted);// 动画显示流程路径详细代码请参考目录下的html文件： /gojs1.6.10/site/samples/_demo.html http://git.oschina.net/markies/FlowDiagram/raw/master/gojs1.6.10/site/samples/_demo.html
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