原代码
<el-col :span="12">
<el-form-item prop="tkcag" label="纵坐标" :rules="[{ type: 'number', message: '纵坐标必须为数字值'}]">
<el-input size="small" v-model.number="formInfo.tkcag" :disabled="layout.disabled" placeholder="请输入"></el-input>
</el-form-item>
</el-col>