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2025-08-21 11:23:54 +08:00
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/**
* 递归使用 call 方式this指向
* @param componentName // 需要找的组件的名称
* @param eventName // 事件名称
* @param params // 需要传递的参数
*/
function broadcast(componentName, eventName, params) {
// 循环子节点找到名称一样的子节点 否则 递归 当前子节点
this.$children.map(child=>{
if (componentName===child.$options.name) {
child.$emit.apply(child,[eventName].concat(params))
}else {
broadcast.apply(child,[componentName,eventName].concat(params))
}
})
}
export default {
methods: {
/**
* 派发 (向上查找) (一个)
* @param componentName // 需要找的组件的名称
* @param eventName // 事件名称
* @param params // 需要传递的参数
*/
dispatch(componentName, eventName, params) {
let parent = this.$parent || this.$root;//$parent 找到最近的父节点 $root 根节点
let name = parent.$options.name; // 获取当前组件实例的name
// 如果当前有节点 && 当前没名称 且 当前名称等于需要传进来的名称的时候就去查找当前的节点
// 循环出当前名称的一样的组件实例
while (parent && (!name||name!==componentName)) {
parent = parent.$parent;
if (parent) {
name = parent.$options.name;
}
}
// 有节点表示当前找到了name一样的实例
if (parent) {
parent.$emit.apply(parent,[eventName].concat(params))
}
},
/**
* 广播 (向下查找) (广播多个)
* @param componentName // 需要找的组件的名称
* @param eventName // 事件名称
* @param params // 需要传递的参数
*/
broadcast(componentName, eventName, params) {
broadcast.call(this,componentName, eventName, params)
}
}
}

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var provinceData=[{"label":"北京市","value":"11"},{"label":"天津市","value":"12"},{"label":"河北省","value":"13"},{"label":"山西省","value":"14"},{"label":"内蒙古自治区","value":"15"},{"label":"辽宁省","value":"21"},{"label":"吉林省","value":"22"},{"label":"黑龙江省","value":"23"},{"label":"上海市","value":"31"},{"label":"江苏省","value":"32"},{"label":"浙江省","value":"33"},{"label":"安徽省","value":"34"},{"label":"福建省","value":"35"},{"label":"江西省","value":"36"},{"label":"山东省","value":"37"},{"label":"河南省","value":"41"},{"label":"湖北省","value":"42"},{"label":"湖南省","value":"43"},{"label":"广东省","value":"44"},{"label":"广西壮族自治区","value":"45"},{"label":"海南省","value":"46"},{"label":"重庆市","value":"50"},{"label":"四川省","value":"51"},{"label":"贵州省","value":"52"},{"label":"云南省","value":"53"},{"label":"西藏自治区","value":"54"},{"label":"陕西省","value":"61"},{"label":"甘肃省","value":"62"},{"label":"青海省","value":"63"},{"label":"宁夏回族自治区","value":"64"},{"label":"新疆维吾尔自治区","value":"65"},{"label":"台湾","value":"66"},{"label":"香港","value":"67"},{"label":"澳门","value":"68"}];export default provinceData;