feat: 实现供水运营专题大屏BI可视化
- 新增OperationDashboard.vue全屏大屏组件 - 添加6个核心KPI指标卡片: 进水总量/出水总量/产销差率/营收额/平均水质/报警次数 - 实现6个ECharts图表: 供水趋势/水质分布/报警统计/管网空间/设备状态/营收分析 - 创建静态HTML版本operation-dashboard.html,使用CDN加载Vue3/ECharts/Element Plus - 更新路由配置,添加/operation路径支持 - 修复nextTick导入问题,优化build脚本 🚧 开发者: bot_dev1 📝 任务: #38 [BI] 运营仪表盘 + 供水专题大屏
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var createMathOperation = require('./_createMathOperation');
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/**
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* Subtract two numbers.
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*
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* @static
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* @memberOf _
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* @since 4.0.0
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* @category Math
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* @param {number} minuend The first number in a subtraction.
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* @param {number} subtrahend The second number in a subtraction.
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* @returns {number} Returns the difference.
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* @example
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*
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* _.subtract(6, 4);
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* // => 2
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*/
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var subtract = createMathOperation(function(minuend, subtrahend) {
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return minuend - subtrahend;
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}, 0);
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module.exports = subtract;
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