elementui根据不同的选择条件做校验

<el-form-item label="合约名称/地址" ref="contractAddr" prop="contractAddr"
	:rules="[{ required: true, message: '请输入合约名称/地址', trigger: 'blur' }]"
	v-if="dataForm.blockChainType == 1 || dataForm.blockChainType == 3"
>
	<el-input v-model="dataForm.contractAddr" placeholder="合约名称/地址"></el-input>
</el-form-item>
<el-form-item label="合约名称/地址" prop="noAddr"
	:rules="[{ required: false, message: '', trigger: 'blur' }]"
	v-else
>
	<el-input v-model="dataForm.noAddr" disabled placeholder="合约名称/地址"></el-input>
</el-form-item>

其它的规则我都统一写在了数组里，只有需要根据不同条件（当选择btc时不需要输入，当选择lcn时必填）进行校验的写在了行内

<el-form :model="dataForm" :rules="dataRules" ref="dataForm">
  <el-form-item label="所属公链" ref="blockChainType" prop="blockChainType">
    <select v-model="dataForm.blockChainType" dict-type="block_chain_type" placeholder="请选择"></select>
  </el-form-item>
  <el-form-item label="代币类型" ref="blockChainType" prop="blockChainType">
    <select v-model="dataForm.currencyType" dict-type="currency_type" placeholder="请选择"></select>
  </el-form-item>
  <el-form-item label="币种精度" ref="accuracy" prop="accuracy">
    <el-input v-model="dataForm.accuracy" placeholder="币种精度"></el-input>
  </el-form-item>
  <el-form-item label="合约名称/地址" ref="contractAddr" prop="contractAddr"
  	:rules="[{ required: true, message: '请输入合约名称/地址', trigger: 'blur' }]"
	v-if="dataForm.blockChainType == 1 || dataForm.blockChainType == 3"
  >
    <el-input v-model="dataForm.contractAddr" placeholder="合约名称/地址"></el-input>
  </el-form-item>
 <el-form-item label="合约名称/地址" prop="contractAddr"
                :rules="[{ required: false, message: '', trigger: 'blur' }]"
                v-else
  >
    <el-input v-model="dataForm.contractAddr" disabled placeholder="合约名称/地址"></el-input>
  </el-form-item>
</el-form>
dataRules: {
    blockChainType: [{ required: true, message: '请选择所属公链', trigger: 'change' }],
    currencyType: [{ required: true, message: '请选择代币类型', trigger: 'change' }],
    accuracy: [{ required: true, message: '请输入币种精度', trigger: 'blur' }],
},