当前位置: 首页 > news >正文

vue使用 jsplumb 生成流程图

1、安装jsPlumb:

npm install jsplumb

2、 在使用的 .vue 文件中引入

import { jsPlumb } from "jsplumb";

简单示例:

注意:注意看 id 为"item-3"和"item-9"那条数据的连线配置

其中有几个小图片,可以用自己的本地图片代替(图标大小的)

<template><div id="wrapper"><div class="line-wrap" v-if="flowChartData1.length == 2"><div :id="flowChartData1[1].id" class="state-item">{{ flowChartData1[1].lable }}</div></div><div class="line-wrap"><div v-for="(item, index) in flowChartData" :key="index" :id="item.id" :class="item.nodeName == 'start' || item.nodeName == 'end' || item.nodeName == 'summary' ? 'state-item-img' : 'state-item'"><img v-if="item.nodeName == 'start'" class="imgs" src="../assets/img/start.png" alt="" /><img v-else-if="item.nodeName == 'summary'" class="imgs" src="../assets/img/cent.png" alt="" /><img v-else-if="item.nodeName == 'end'" class="imgs" src="../assets/img/end.png" alt="" /><div v-else>{{ item.lable }}</div></div></div><div class="line-wrap" v-if="flowChartData1.length > 0 && flowChartData1.length < 3"><div :id="flowChartData1[0].id" class="state-item">{{ flowChartData1[0].lable }}</div></div></div>
</template>
<script>
import { jsPlumb } from "jsplumb";
export default {name: "LiuChengTu",data() {return {// 一行数据的// flowChartData: [//   { id: "item-0", lable: "", nodeName: "start", connectId: [{source: "item-0", target: "item-1"}] }, // 开始//   { id: "item-1", lable: "改革处-经办人-发起", nodeName: "", connectId: [{source: "item-1", target: "item-2"}] },//   { id: "item-2", lable: "承办部门-改革联系人填报/分发", nodeName: "", connectId: [{source: "item-2", target: "item-3"}] },//   { id: "item-3", lable: "", nodeName: "summary", connectId: [{source: "item-3", target: "item-4"}] }, // 汇总/分发//   { id: "item-4", lable: "承办部门-部门主任-审批", nodeName: "", connectId: [{source: "item-4", target: "item-5"}] },//   { id: "item-5", lable: "改革处-经办人-合规性审查", nodeName: "", connectId: [{source: "item-5", target: "item-6"}] },//   { id: "item-6", lable: "改革处-处领导-合规性审查", nodeName: "", connectId: [{source: "item-6", target: "item-7"}] },//   { id: "item-7", lable: "", nodeName: "summary", connectId: [{source: "item-7", target: "item-8"}] }, // 汇总/分发//   { id: "item-8", lable: "", nodeName: "end", connectId: [] }, // 结束// ],// 两行数据的// flowChartData: [//   { id: "item-0", lable: "", nodeName: "start", connectId: [{source: "item-0", target: "item-1"}] }, // 开始//   { id: "item-1", lable: "改革处-经办人-发起", nodeName: "", connectId: [{source: "item-1", target: "item-2"}] },//   { id: "item-2", lable: "承办部门-改革联系人填报/分发", nodeName: "", connectId: [{source: "item-2", target: "item-3"}] },//   { id: "item-3", lable: "", nodeName: "summary", connectId: [{source: "item-3", target: "item-4"}, {source: "item-3", target: "item-9"}] }, // 汇总/分发//   { id: "item-4", lable: "承办部门-部门主任-审批", nodeName: "", connectId: [{source: "item-4", target: "item-5"}] },//   { id: "item-5", lable: "改革处-经办人-合规性审查", nodeName: "", connectId: [{source: "item-5", target: "item-6"}] },//   { id: "item-6", lable: "改革处-处领导-合规性审查", nodeName: "", connectId: [{source: "item-6", target: "item-7"}] },//   { id: "item-7", lable: "", nodeName: "summary", connectId: [{source: "item-7", target: "item-8"}] }, // 汇总/分发//   { id: "item-8", lable: "", nodeName: "end", connectId: [] }, // 结束//   { id: "item-9", lable: "改革处-经办人-接收待阅", nodeName: "handleOut", connectId: [{source: "item-9", target: "item-7"}] }, // 第二行数据// ],// 三行数据的flowChartData: [{ id: "item-0", lable: "", nodeName: "start", connectId: [{source: "item-0", target: "item-1"}] }, // 开始{ id: "item-1", lable: "改革处-经办人-发起", nodeName: "", connectId: [{source: "item-1", target: "item-2"}] },{ id: "item-2", lable: "承办部门-改革联系人填报/分发", nodeName: "", connectId: [{source: "item-2", target: "item-3"}] },{ id: "item-3", lable: "", nodeName: "summary", connectId: [{source: "item-3", target: "item-4"}, {source: "item-3", target: "item-9"}, {source: "item-3", target: "item-10"}] }, // 汇总/分发{ id: "item-4", lable: "承办部门-部门主任-审批", nodeName: "", connectId: [{source: "item-4", target: "item-5"}] },{ id: "item-5", lable: "改革处-经办人-合规性审查", nodeName: "", connectId: [{source: "item-5", target: "item-6"}] },{ id: "item-6", lable: "改革处-处领导-合规性审查", nodeName: "", connectId: [{source: "item-6", target: "item-7"}] },{ id: "item-7", lable: "", nodeName: "summary", connectId: [{source: "item-7", target: "item-8"}] }, // 汇总/分发{ id: "item-8", lable: "", nodeName: "end", connectId: [] }, // 结束{ id: "item-9", lable: "改革处-经办人-接收待阅", nodeName: "handleOut", connectId: [{source: "item-9", target: "item-7"}] }, // 第二行数据{ id: "item-10", lable: "改革处-经办人-接收待阅123", nodeName: "handleOut", connectId: [{source: "item-10", target: "item-7"}] }, // 第二行数据],flowChartData1: []};},mounted() {this.initJsPlumb();},methods: {initJsPlumb() {let jsPlumbConnectList = [];let listData = [];let fenfaData = [];// 处理数据this.flowChartData.forEach(ele=>{if(ele.connectId.length == 1) {if(ele.nodeName == "handleOut") {fenfaData.push(ele);}else {listData.push(ele);let plumbInsInfo = {source: ele.connectId[0].source,target: ele.connectId[0].target,anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}}else if(ele.connectId.length == 1){if(ele.nodeName == "handleOut") {fenfaData.push(ele);}else {listData.push(ele);ele.connectId.forEach((itemInfo,index)=>{if(index == 0) {let plumbInsInfo = {source: itemInfo.source,target: itemInfo.target,anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}else {let plumbInsInfo = {source: itemInfo.source,target: itemInfo.target,anchor: ["Bottom", "Left"],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}})}}else {if(ele.nodeName == "handleOut") {fenfaData.push(ele);}else {listData.push(ele);ele.connectId.forEach((itemInfo,index)=>{if(index == 0) {let plumbInsInfo = {source: itemInfo.source,target: itemInfo.target,anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}else if(index == 1) {let plumbInsInfo = {source: itemInfo.source,target: itemInfo.target,anchor: ["Bottom", "Left"],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}else {let plumbInsInfo = {source: itemInfo.source,target: itemInfo.target,anchor: ["Top", "Left"],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}})}}})this.flowChartData = listData;this.flowChartData1 = fenfaData;if(this.flowChartData1.length > 0) {this.flowChartData1.forEach((ele, index)=>{if(index==0) {let plumbInsInfo = {source: ele.connectId[0].source,target: ele.connectId[0].target,anchor: ["Right", "Bottom"],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}else {let plumbInsInfo = {source: ele.connectId[0].source,target: ele.connectId[0].target,anchor: ["Right", "Top"],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector}jsPlumbConnectList.push(plumbInsInfo)}})}setTimeout(() => {let plumbIns = jsPlumb.getInstance();plumbIns.ready(function () {jsPlumbConnectList.forEach(ele=>{plumbIns.connect(ele);})})}, 500);return;// let plumbIns = jsPlumb.getInstance();plumbIns.ready(function () {plumbIns.connect({// 对应上述基本概念source: "item-0",target: "item-1",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-1",target: "item-2",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-2",target: "item-3",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-3",target: "item-4",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-4",target: "item-5",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-5",target: "item-6",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-6",target: "item-7",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-7",target: "item-8",anchor: ["Left","Right","Top","Bottom",[0.3, 0, 0, -1],[0.7, 0, 0, -1],[0.3, 1, 0, 1],[0.7, 1, 0, 1],],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-3",target: "item-9",anchor: ["Bottom", "Left"],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});plumbIns.connect({// 对应上述基本概念source: "item-9",target: "item-7",anchor: ["Right", "Bottom"],connector: ["Flowchart",{ cornerRadius: 5, alwaysRespectStubs: true, stub: 5 },],endpoint: "Blank",overlays: [["Arrow", { width: 8, length: 8, location: 1 }]], // overlay// 添加样式paintStyle: { stroke: "#909399", strokeWidth: 2 }, // connector// endpointStyle: { fill: '#909399', outlineStroke: '#606266', outlineWidth: 1 } // endpoint});});},},
};
</script>
<style lang="scss" scoped>
#wrapper {background: radial-gradient(ellipse at top left,rgba(255, 255, 255, 1) 40%,rgba(229, 229, 229, 0.9) 100%);padding: 60px 80px;
}
.state-item-img {width: 50px;height: 50px;color: #606266;border: 2px solid rgba(0, 0, 0, 0);text-align: center;line-height: 30px;font-family: sans-serif;border-radius: 4px;margin-right: 56px;font-size: 14px;.imgs {width: 50px;height: 50px;}
}
.state-item {width: 120px;height: 100px;color: #606266;background: #f6f6f6;border: 2px solid rgba(0, 0, 0, 0.05);text-align: center;line-height: 30px;font-family: sans-serif;border-radius: 4px;margin-right: 60px;font-size: 14px;padding: 5px 10px;display: flex;align-items: center;
}
.line-wrap {display: flex;margin-bottom: 100px;justify-content: center;align-items: center;
}
</style>

相关文章:

vue使用 jsplumb 生成流程图

1、安装jsPlumb&#xff1a; npm install jsplumb 2、 在使用的 .vue 文件中引入 import { jsPlumb } from "jsplumb"; 简单示例&#xff1a; 注意&#xff1a;注意看 id 为"item-3"和"item-9"那条数据的连线配置 其中有几个小图片&#x…...

攻坚金融关键业务系统,OceanBase亮相2024金融科技大会

10月15-16日&#xff0c;第六届中新数字金融应用博览会与2024金融科技大会&#xff08;简称“金博会”&#xff09;在苏州工业园区联合举办。此次大会融合了国家级重要金融科技资源——“中国金融科技大会”&#xff0c;围绕“赋能金融高质量发展&#xff0c;金融科技创新前行”…...

《纳瓦尔宝典:财富和幸福指南》读书随笔

最近在罗胖的得到听书中听到一本书&#xff0c;感觉很有启发&#xff0c;书的名字叫《纳瓦尔宝典》&#xff0c;从书名上看给人的感觉应该财富知识类、鸡汤爆棚哪类。纳瓦尔&#xff0c;这个名字之前确实没有听说过&#xff0c;用一句话介绍一下&#xff0c;一个印度裔的硅谷中…...

C++ | STL | 侯捷 | 学习笔记

C | STL | 侯捷 | 学习笔记 文章目录 C | STL | 侯捷 | 学习笔记1 STL概述1.1 头文件名称1.2 STL基础介绍1.3 typename 2 OOP vs. GP3 容器3.1 容器结构分类3.2 序列式容器3.2.1 array测试深度探索 3.2.2 vector测试深度探索 3.2.3 list测试深度探索 3.2.4 forward_list测试深度…...

C函数基础

C语言中的函数教程 在C语言中&#xff0c;函数是一段组织好的、可重复使用的、用于执行特定任务的代码。函数可以提高代码的模块化和可重用性。以下是关于C语言中函数的详细教程。 1. 函数的定义与声明 1.1 函数定义 函数定义包括函数头和函数体。函数头包括函数返回类型、…...

html和css实现页面

任务4 html文件 任务5 htm文件 css文件 任务6 html文件 css文件 任务7 html文件 css文件...

Github_以太网开源项目verilog-ethernet代码阅读与移植(八)——移植工程分享

实验背景 第六篇计划是写项目中各个模块的实现和约束文件的编写&#xff0c;有的小伙伴有裁剪工程的需要&#xff0c;就先分享一个半成品以供参考&#xff0c;由于笔者水平有限&#xff0c;错误肯定会有&#xff0c;望批评指正。 实验内容 移植工程共享 实验步骤 工程一部…...

【大模型实战篇】大模型分词算法BPE(Byte-Pair Encoding tokenization)及代码示例

词元化是针对自然语言处理任务的数据预处理中一个重要步骤&#xff0c;目的是将原始文本切分成模型可以识别和处理的词元序列。在大模型训练任务中&#xff0c;就是作为大模型的输入。传统的自然语言处理方法&#xff0c;如基于条件随机场的序列标注&#xff0c;主要采用基于词…...

低功耗4G模组LCD应用示例超全教程!不会的小伙伴看这篇就够了!

希望大家通过本文的介绍&#xff0c;学会LCD显示屏与Air780E开发板结合使用的方法。利用LCD显示屏&#xff0c;你可以为你的项目增加丰富的显示内容&#xff0c;提升用户体验。记住&#xff0c;实践出真知&#xff0c;赶快动手尝试吧&#xff01;相信这篇教程对你有所帮助~ 本文…...

Java while语句练习 C语言的函数递归

1. /* public static void main(String[] args) {int[] arr {25, 24, 12, 98, 36, 45};int max arr[0];//不能写0for (int i 1; i < arr.length; i) {if (arr[i] > max) {max arr[i];}}System.out.println(max);}*//*public static void main(String[] args) {doubl…...

illustrator免费插件 截图识别文字插件 textOCR

随手可得的截图识别文字插件 textOCR&#xff0c;识别出来的文字可直接输入到illustrator的当前文档中&#xff1a; 执行条件 1、需截图软件支持&#xff0c;推荐笔记截图工具 2、截好图片直接拖入面板即可完成识别 ****后期可完成实现在illustrator选择图片对象完成文字识别。…...

提升数据管理效率:ETLCloud与达梦数据库的完美集成

达梦数据库的核心优势在于其强大的数据处理能力和高可用性设计。它采用先进的并行处理技术&#xff0c;支持大规模的数据操作&#xff0c;同时具备出色的事务处理能力和数据安全保障。此外&#xff0c;达梦数据库还提供了丰富的功能模块&#xff0c;如数据备份、恢复、监控等&a…...

头歌——人工智能(搜索策略)

文章目录 第1关&#xff1a;搜索策略第2关&#xff1a;盲目搜索第3关&#xff1a;启发式搜索 - 扫地机器人最短路径搜索第4关&#xff1a;搜索算法应用 - 四皇后问题 第1关&#xff1a;搜索策略 什么是搜索技术 人类的思维过程可以看作是一个搜索过程。从小学到现在&#xff0…...

gorm.io/sharding改造:赋能单表,灵活支持多分表策略(下)

背景 分表组件改造的背景&#xff0c;我在这篇文章《gorm.io/sharding改造&#xff1a;赋能单表&#xff0c;灵活支持多分表策略&#xff08;上&#xff09;》中已经做了详细的介绍——这个组件不支持单表多个分表策略&#xff0c;为了突破这个限制做的改造。 在上一篇文章中&…...

域渗透AD渗透攻击利用 MS14-068漏洞利用过程 以及域渗透中票据是什么 如何利用

目录 wmi协议远程执行 ptt票据传递使用 命令传递方式 明文口令传递 hash口令传递 票据分类 kerberos认证的简述流程 PTT攻击的过程 MS14-068 漏洞 执行过程 wmi协议远程执行 wmi服务是比smb服务高级一些的&#xff0c;在日志中是找不到痕迹的&#xff0c;但是这个主…...

C++进阶-->继承(inheritance)

1. 继承的概念及定义 1.1 继承的概念 继承(inheritance)机制是面向对象程序设计使代码可以复用的最重要手段&#xff0c;他允许我们在保证原有类的特性基础上还进行扩展&#xff0c;通过继承产生的类叫做派生类&#xff08;子类&#xff09;&#xff0c;被继承的类叫做基类&a…...

可视化项目 gis 资源复用思路(cesium)

文章目录 可视化项目 gis 资源复用思路底图、模型替换思路具体操作 可视化项目 gis 资源复用思路 背景&#xff1a; A项目的底图、模型 是现在在做的 B项目所需要的&#xff0c;现在要把 B项目的底图之类的替换成 A系统的 底图、模型替换思路 观察可访问系统的 gis 相关网络请…...

SQL实战测试

SQL实战测试 &#xff08;请写下 SQL 查询语句&#xff0c;不需要展示结果&#xff09; 表 a DateSalesCustomerRevenue2019/1/1张三A102019/1/5张三A18 1. **用一条 ** SQL 语句写出每个月&#xff0c;每个销售有多少个客户收入多少 输出结果表头为“月”&#xff0c;“销…...

Java 基础教学:基础语法-变量与常量

变量 变量是程序设计中的基本概念&#xff0c;它用于存储信息&#xff0c;这些信息可以在程序执行过程中被读取和修改。 变量的声明 在Java中&#xff0c;声明变量需要指定变量的数据类型以及变量的名称。数据类型定义了变量可以存储的数据种类&#xff08;例如整数、浮点数…...

vue3使用element-plus手动更改url后is-active和菜单的focus颜色不同步问题

在实习&#xff0c;给了个需求做个新的ui界面&#xff0c;遇到了一个非常烦人的问题 如下&#xff0c;手动修改url时&#xff0c;is-active和focus颜色不同步 虽然可以直接让el-menu-item:focus为白色能解决这个问题&#xff0c;但是我就是想要有颜色哈哈哈&#xff0c;有些执…...

C++实现分布式网络通信框架RPC(3)--rpc调用端

目录 一、前言 二、UserServiceRpc_Stub 三、 CallMethod方法的重写 头文件 实现 四、rpc调用端的调用 实现 五、 google::protobuf::RpcController *controller 头文件 实现 六、总结 一、前言 在前边的文章中&#xff0c;我们已经大致实现了rpc服务端的各项功能代…...

云计算——弹性云计算器(ECS)

弹性云服务器&#xff1a;ECS 概述 云计算重构了ICT系统&#xff0c;云计算平台厂商推出使得厂家能够主要关注应用管理而非平台管理的云平台&#xff0c;包含如下主要概念。 ECS&#xff08;Elastic Cloud Server&#xff09;&#xff1a;即弹性云服务器&#xff0c;是云计算…...

线程与协程

1. 线程与协程 1.1. “函数调用级别”的切换、上下文切换 1. 函数调用级别的切换 “函数调用级别的切换”是指&#xff1a;像函数调用/返回一样轻量地完成任务切换。 举例说明&#xff1a; 当你在程序中写一个函数调用&#xff1a; funcA() 然后 funcA 执行完后返回&…...

为什么需要建设工程项目管理?工程项目管理有哪些亮点功能?

在建筑行业&#xff0c;项目管理的重要性不言而喻。随着工程规模的扩大、技术复杂度的提升&#xff0c;传统的管理模式已经难以满足现代工程的需求。过去&#xff0c;许多企业依赖手工记录、口头沟通和分散的信息管理&#xff0c;导致效率低下、成本失控、风险频发。例如&#…...

Golang dig框架与GraphQL的完美结合

将 Go 的 Dig 依赖注入框架与 GraphQL 结合使用&#xff0c;可以显著提升应用程序的可维护性、可测试性以及灵活性。 Dig 是一个强大的依赖注入容器&#xff0c;能够帮助开发者更好地管理复杂的依赖关系&#xff0c;而 GraphQL 则是一种用于 API 的查询语言&#xff0c;能够提…...

从零开始打造 OpenSTLinux 6.6 Yocto 系统(基于STM32CubeMX)(九)

设备树移植 和uboot设备树修改的内容同步到kernel将设备树stm32mp157d-stm32mp157daa1-mx.dts复制到内核源码目录下 源码修改及编译 修改arch/arm/boot/dts/st/Makefile&#xff0c;新增设备树编译 stm32mp157f-ev1-m4-examples.dtb \stm32mp157d-stm32mp157daa1-mx.dtb修改…...

JDK 17 新特性

#JDK 17 新特性 /**************** 文本块 *****************/ python/scala中早就支持&#xff0c;不稀奇 String json “”" { “name”: “Java”, “version”: 17 } “”"; /**************** Switch 语句 -> 表达式 *****************/ 挺好的&#xff…...

3403. 从盒子中找出字典序最大的字符串 I

3403. 从盒子中找出字典序最大的字符串 I 题目链接&#xff1a;3403. 从盒子中找出字典序最大的字符串 I 代码如下&#xff1a; class Solution { public:string answerString(string word, int numFriends) {if (numFriends 1) {return word;}string res;for (int i 0;i &…...

MySQL用户和授权

开放MySQL白名单 可以通过iptables-save命令确认对应客户端ip是否可以访问MySQL服务&#xff1a; test: # iptables-save | grep 3306 -A mp_srv_whitelist -s 172.16.14.102/32 -p tcp -m tcp --dport 3306 -j ACCEPT -A mp_srv_whitelist -s 172.16.4.16/32 -p tcp -m tcp -…...

【笔记】WSL 中 Rust 安装与测试完整记录

#工作记录 WSL 中 Rust 安装与测试完整记录 1. 运行环境 系统&#xff1a;Ubuntu 24.04 LTS (WSL2)架构&#xff1a;x86_64 (GNU/Linux)Rust 版本&#xff1a;rustc 1.87.0 (2025-05-09)Cargo 版本&#xff1a;cargo 1.87.0 (2025-05-06) 2. 安装 Rust 2.1 使用 Rust 官方安…...