html简易流程图

🕗 发布于 2024-11-04 13:38 html 流程图 css

效果图
在这里插入图片描述
使用html+css+js，无图片，没用Canvas

demo:

<!DOCTYPE html>
<html>
<head>
    <link href="draw.css" rel="stylesheet" />
    <script src="draw.js" type="text/javascript"></script>
</head>
<body>
    <div class="diamond" style="top:100px;left: 100px;">
        <span class="diamond-text">开始</span>
    </div>

    <!-- 下箭头 -->
    <div class="arrow-down" style="top:195px;left:140px;">
        <span></span>
    </div>

    <div class="rectangle" style="top:275px;left: 100px;">
        <span class="rectangle-text">步骤一</span>
    </div>

    <div class="arrow-down" style="top:325px;left:140px;">
        <span></span>
    </div>

    <div class="rectangle" style="top:405px;left: 100px;">
        <span class="rectangle-text">步骤二</span>
    </div>

    <div class="arrow-down" style="top:455px;left:140px;">
        <span></span>
    </div>

    <div class="diamond" style="top:550px;left: 100px;">
        <span class="diamond-text">分叉节点</span>
    </div>

    <div>
        <div class="arrow-down" style="top:645px;left:140px;">
            <span></span>
        </div>

        <div class="rectangle" style="top:725px;left: 100px;">
            <span class="rectangle-text">步骤三</span>
        </div>

    </div>

    <div>
        <div class="arrow-horizontal-down" style="top:590px;left:195px;">
            <div></div>
            <span></span>
        </div>

        <div class="rectangle" style="top:725px;left: 230px;">
            <span class="rectangle-text">步骤四</span>
        </div>
    </div>


</body>
</html>

css:

/* 椭圆 */
.ellipse {
  width: 100px;
  height: 50px;
  background-color: #6495ED;
  border-radius: 100px;
  text-align: center;
  position: absolute;
}

.ellipse-text {
  width: 80px;
  height: 50px;
  margin-top: 10px;
}

/* 菱形，长宽91.28 */
.diamond {
  width: 80px;
  height: 80px;
  transform: rotate(45deg);
  background-color: #bfa;
  position: absolute;
}
 
.diamond-text{
  width: 60px;
  margin-top: 10px;
  display: inline-block;
  transform: rotate(-45deg);
  text-align: center;
}

/* 长方形 */
.rectangle{
  width: 92px;
  height: 50px;
  border: 1px;
  border-color: black;
  background-color: aquamarine;
  text-align: center;
  position: absolute;
}

/* 向下箭头 */
.arrow-down {
  width: 2px;
  height: 80px;
  background-color: black;
  position: absolute;
}

.arrow-down span {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 10px solid black;
  position: relative;
  top:81px;left:-4px;
}

/* 折线箭头 */
.arrow-horizontal-down {
  width: 150px;
  height: 2px;
  background-color: black;
  position: absolute;
  z-index: -1;
}

.arrow-horizontal-down div{
  width: 2px;
  height: 125px;
  left:150px;
  background-color: black;
  position: relative;
}

.arrow-horizontal-down span {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 10px solid black;
  position: relative;
  top:10px;left:146px;
}

/* 横线 */
.horizontal-line{
  width: 100px;
  height: 2px;
  background-color: black;
  position: absolute;
  z-index: -1;
}

js 代码可以动态生成流程图


// json 节点数据
// let data = [{"id":0,"name":"开始","type":"diamond","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1369,1370,1376,1380,1412,1413,1553,2120],"LengtheningTime":0},{"id":1369,"name":"部门负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1371],"LengtheningTime":0},{"id":1370,"name":"部门负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1372],"LengtheningTime":0},{"id":1371,"name":"逐级审批I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1402],"LengtheningTime":0},{"id":1372,"name":"逐级审批II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1393],"LengtheningTime":0},{"id":1374,"name":"人力与行政负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1982],"LengtheningTime":0},{"id":1375,"name":"总经理II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1575],"LengtheningTime":0},{"id":1376,"name":"部门负责人III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1377],"LengtheningTime":0},{"id":1377,"name":"逐级审批III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1395],"LengtheningTime":0},{"id":1378,"name":"人力与行政负责人III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1983],"LengtheningTime":0},{"id":1380,"name":"部门负责人IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1381],"LengtheningTime":0},{"id":1381,"name":"逐级审批IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1396],"LengtheningTime":0},{"id":1382,"name":"人力与行政负责人lV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1985],"LengtheningTime":0},{"id":1393,"name":"上级审批II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1929],"LengtheningTime":0},{"id":1395,"name":"上级审批III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1930],"LengtheningTime":0},{"id":1396,"name":"上级审批IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1931],"LengtheningTime":0},{"id":1402,"name":"上级审批l","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1928],"LengtheningTime":0},{"id":1403,"name":"管理员处理","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":1404,"name":"程序中心总经理I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1701],"LengtheningTime":0},{"id":1405,"name":"程序中心总经理II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1702],"LengtheningTime":0},{"id":1406,"name":"程序中心总经理III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1703],"LengtheningTime":0},{"id":1407,"name":"程序中心总经理IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1704],"LengtheningTime":0},{"id":1412,"name":"总经理（002）","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1578],"LengtheningTime":0},{"id":1413,"name":"总经理1（002）","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1699],"LengtheningTime":0},{"id":1552,"name":"人力与行政负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1609],"LengtheningTime":0},{"id":1553,"name":"部门负责人V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1554],"LengtheningTime":0},{"id":1554,"name":"逐级审批V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1555],"LengtheningTime":0},{"id":1555,"name":"上级审批V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1932],"LengtheningTime":0},{"id":1556,"name":"程序中心总经理V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1705],"LengtheningTime":0},{"id":1557,"name":"人力与行政负责人V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1986],"LengtheningTime":0},{"id":1575,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":1578,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":1579,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":1609,"name":"综合业务负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1579],"LengtheningTime":0},{"id":1612,"name":"综合业务负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1974],"LengtheningTime":0},{"id":1613,"name":"综合业务负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1375],"LengtheningTime":0},{"id":1696,"name":"HRBPII","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1374],"LengtheningTime":0},{"id":1697,"name":"HRBPIII","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1378],"LengtheningTime":0},{"id":1698,"name":"HRBPIV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1382],"LengtheningTime":0},{"id":1699,"name":"人力资源备案","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1552],"LengtheningTime":0},{"id":1700,"name":"HRBPV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1557],"LengtheningTime":0},{"id":1701,"name":"发行中心负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1612],"LengtheningTime":0},{"id":1702,"name":"发行中心负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1696],"LengtheningTime":0},{"id":1703,"name":"发行中心负责人III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1697],"LengtheningTime":0},{"id":1704,"name":"发行中心负责人IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1698],"LengtheningTime":0},{"id":1705,"name":"发行中心负责人V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1700],"LengtheningTime":0},{"id":1928,"name":"美术负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2265],"LengtheningTime":0},{"id":1929,"name":"美术负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2266],"LengtheningTime":0},{"id":1930,"name":"美术负责人III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2267],"LengtheningTime":0},{"id":1931,"name":"美术负责人IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2268],"LengtheningTime":0},{"id":1932,"name":"美术负责人V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2269],"LengtheningTime":0},{"id":1974,"name":"HRBPI","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1975],"LengtheningTime":0},{"id":1975,"name":"人力与行政负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1981],"LengtheningTime":0},{"id":1976,"name":"人力资源备案II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2067],"LengtheningTime":0},{"id":1979,"name":"人力资源备案IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2175],"LengtheningTime":0},{"id":1980,"name":"人力资源备案V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2176],"LengtheningTime":0},{"id":1981,"name":"史延斌I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1403],"LengtheningTime":0},{"id":1982,"name":"史延斌II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1976],"LengtheningTime":0},{"id":1983,"name":"史延斌III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2068],"LengtheningTime":0},{"id":1984,"name":"人力资源备案III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2174],"LengtheningTime":0},{"id":1985,"name":"史延斌IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1979],"LengtheningTime":0},{"id":1986,"name":"史延斌V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1980],"LengtheningTime":0},{"id":2067,"name":"部门助理备案","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1613],"LengtheningTime":0},{"id":2068,"name":"部门助理备案","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1984],"LengtheningTime":0},{"id":2107,"name":"程序中心副总经理I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1404],"LengtheningTime":0},{"id":2108,"name":"程序中心副总经理II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1405],"LengtheningTime":0},{"id":2109,"name":"程序中心副总经理III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1406],"LengtheningTime":0},{"id":2110,"name":"程序中心副总经理IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1407],"LengtheningTime":0},{"id":2111,"name":"程序中心副总经理V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[1556],"LengtheningTime":0},{"id":2120,"name":"程序中心副总经理","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2122],"LengtheningTime":0},{"id":2122,"name":"程序BP1","type":"diamond","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2123,2125,2159,2161],"LengtheningTime":0},{"id":2123,"name":"人力与行政负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2179],"LengtheningTime":0},{"id":2125,"name":"程序中心总经理","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2137],"LengtheningTime":0},{"id":2126,"name":"总经理审批","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2127],"LengtheningTime":0},{"id":2127,"name":"部门助理审批","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2128],"LengtheningTime":0},{"id":2128,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":2137,"name":"人力与行政负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2138],"LengtheningTime":0},{"id":2138,"name":"综合业务负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2126],"LengtheningTime":0},{"id":2154,"name":"肖洲","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2503],"LengtheningTime":0},{"id":2155,"name":"肖洲","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2504],"LengtheningTime":0},{"id":2156,"name":"肖洲","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2505],"LengtheningTime":0},{"id":2157,"name":"肖洲","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2506],"LengtheningTime":0},{"id":2158,"name":"肖洲","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2507],"LengtheningTime":0},{"id":2159,"name":"人力资源与行政负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2160],"LengtheningTime":0},{"id":2160,"name":"人力资源备案3","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2180],"LengtheningTime":0},{"id":2161,"name":"程序中心总经理1","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2162],"LengtheningTime":0},{"id":2162,"name":"人力与行政负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2163],"LengtheningTime":0},{"id":2163,"name":"综合业务负责人","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2164],"LengtheningTime":0},{"id":2164,"name":"总经理审批","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2165],"LengtheningTime":0},{"id":2165,"name":"部门助理审批","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2166],"LengtheningTime":0},{"id":2166,"name":"人力资源备案","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2181],"LengtheningTime":0},{"id":2174,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":2175,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":2176,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":2179,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":2180,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":2181,"name":"管理员处理","type":"ellipse","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[],"LengtheningTime":0},{"id":2265,"name":"财务与法务负责人I","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2154],"LengtheningTime":0},{"id":2266,"name":"财务与法务负责人II","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2155],"LengtheningTime":0},{"id":2267,"name":"财务与法务负责人III","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2156],"LengtheningTime":0},{"id":2268,"name":"财务与法务负责人IV","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2157],"LengtheningTime":0},{"id":2269,"name":"财务与法务负责人V","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2158],"LengtheningTime":0},{"id":2503,"name":"BP代批（I）","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2107],"LengtheningTime":0},{"id":2504,"name":"BP代批（II）","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2108],"LengtheningTime":0},{"id":2505,"name":"BP代批（III）","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2109],"LengtheningTime":0},{"id":2506,"name":"BP代批（IV）","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2110],"LengtheningTime":0},{"id":2507,"name":"BP代批（V）","type":"rectangle","click":"alert(1)","apptid":"ihrm_attendanceleave","children":[2111],"LengtheningTime":0}]
let data = 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// 偏移数值
let offsetNum = {
    ellipseTop :51,
    ellipseLeft :40,
    diamondTop :95,
    diamondLeft :40,
    rectangleTop :50,
    rectangleLeft :40,
    arrowTop :80,
    arrowLeft :0,
    brokenLineTop:135,
    brokenLineLeft:80
}

// 开始创建
function BeginDraw(){
    CreateNode(data[0],100,100);
}

// 循环创建子节点
function CreateChildNode(lastNode,lastTop,lastLeft){
    // 一个子节点
    if(lastNode.children.length > 0){
        CreateVerticalArrow(lastNode,lastTop,lastLeft);
    }
    // 多个子节点
    if(lastNode.children.length > 1){
        let beginTop = GetOffsetTop(lastNode) / 2 + lastTop - 10;
        let beginLeft = GetOffsetLeft(lastNode) * 2 + lastLeft + 15;
        for (let c = 1;c < lastNode.children.length;c++) {
            CreateBrokenArrow(beginTop,beginLeft,lastNode.children[c]);
            beginLeft = beginLeft + 140;
        }
    }
}

// 创建节点
function CreateNode(node,top,left){
    let div = document.createElement("div");
    div.className = node.type;
    div.style.top = top + "px";
    div.style.left = left + "px";
    let span = document.createElement("span");
    span.innerText = node.name;
    span.className = node.type + "-text";
    div.appendChild(span);
    div.onclick = function() {
        // 使用eval执行方法
        eval(node.click);
    };
    document.body.append(div);
    CreateChildNode(node,top,left);
}

// 创建竖线箭头+节点
function CreateVerticalArrow(lastNode,nodeTop,nodeLeft){
    // 竖线箭头top
    let arrowtop = GetOffsetTop(lastNode) + nodeTop;
    // 竖线箭头left
    let arrowleft = GetOffsetLeft(lastNode) + nodeLeft;
    let div = document.createElement("div");
    div.className = "arrow-down";
    div.style.top = arrowtop + "px";
    div.style.left = arrowleft + "px";
    let span = document.createElement("span");
    div.appendChild(span);
    document.body.append(div);
    for (let key in data) {
        if(lastNode.children[0] == data[key].id){
            // 新节点top
            let newNodeTop = arrowtop + offsetNum.arrowTop;
            if(data[key].type == "diamond"){
                newNodeTop = newNodeTop + 15;
            }
            CreateNode(data[key],newNodeTop,nodeLeft);
        }
    }
}

// 创建折线箭头+节点
function CreateBrokenArrow(arrowTop,arrowLeft,childnum){
    let div = document.createElement("div");
    div.className = "arrow-horizontal-down";
    div.style.top = arrowTop + "px";
    div.style.left = (arrowLeft - 70) + "px";
    let ndiv = document.createElement("div");
    let span = document.createElement("span");
    div.appendChild(ndiv);
    div.appendChild(span);
    document.body.append(div);
    for (let key in data) {
        if(childnum == data[key].id){
            // 新节点top
            let newNodeTop = arrowTop + offsetNum.brokenLineTop;
            // 新节点Left
            let newNodeLeft = arrowLeft + offsetNum.brokenLineLeft - GetOffsetLeft(data[key]);
            if(data[key].type == "diamond"){
                newNodeTop = newNodeTop + 15;
            }
            CreateNode(data[key],newNodeTop,newNodeLeft);
        }
    }
}

// 获取Top偏移量
function GetOffsetTop(lastNode){
    if(lastNode.type == "arrow"){
        return offsetNum.arrowTop;
    }
    else if(lastNode.type == "diamond"){
        return offsetNum.diamondTop;
    }
    else if(lastNode.type == "rectangle"){
        return offsetNum.rectangleTop;
    }
    else if(lastNode.type == "ellipse"){
        return offsetNum.ellipseTop;
    }
    return 100;
}

// 获取Left偏移量
function GetOffsetLeft(lastNode){
    if(lastNode.type == "arrow"){
        return offsetNum.arrowLeft;
    }
    else if(lastNode.type == "diamond"){
        return offsetNum.diamondLeft;
    }
    else if(lastNode.type == "rectangle"){
        return offsetNum.rectangleLeft;
    }
    else if(lastNode.type == "ellipse"){
        return offsetNum.ellipseLeft;
    }
    return 0;
}

动态生成效果
在这里插入图片描述

原文地址：https://blog.csdn.net/qq_21703215/article/details/143301252

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