vue-if、for

<span v-if="scope.row.distribution==0">
否
            </span>
            <span v-else-if="scope.row.distribution==1">
是
            </span>
            <span v-else>
无
            </span>

vue的if运用，经开发实践运用，无问题

<el-col :span="4">
                    <el-form-item label="项目">
                      <el-select placeholder="请选择费用类型" v-model="listQuery.projectId">
                        <el-option
                          v-for="item in selectproject"
                          :label="item.projectName"
                          :value="item.projectId"
                          :key="item.projectId"
                        >{{item.projectName}}</el-option>
                      </el-select>
                    </el-form-item>
                  </el-col>

后端所需要属性决定于   v-model