watch:{ 'formData.hospital': (val,oldval) => { debugger this.$refs.bedCom.initBed(); } },
<template>
<view class="">
<view class="input-wrapper" @tap="showBed">
<view style="font-size: 24upx;" class="iconfont icon-bingchuang"></view>
<input disabled cursor-spacing="150" name="bed" class="input-row" placeholder-style="color:#828288" type="text"
v-model="formData.bed" placeholder="床号" />
</view>
<w-picker :colData="colData" :current="true" :mode="bedData.mode" @change="bedPickerChange" :defaultVal="bedData.value"
@confirm="onBedConfirm" ref="bed" themeColor="#f00"></w-picker>
</view>
</template>
onLoad
生命周期调用this.$watch('formData.hospital',(newValue,old) => {
this.$refs.bedCom.initBed();
});