参与项目改为取消状态时，不能继续修改状态

src/views/base/participateProjectInfo-list.vue

@@ -76,7 +76,15 @@
         <el-table-column  prop="completionTime"  label="完成时间"></el-table-column>
         <el-table-column prop="status"  label="状态" >
             <template slot-scope="{row}">
-                <el-select v-model="row.status" placeholder="请选择" size="mini" @change="handleChange(row.id,$event)">
+              <el-select v-model="row.status" v-if="row.status=='3'" disabled placeholder="请选择" size="mini" >
+                    <el-option
+                    v-for="item in statusList"
+                    :key="item.value"
+                    :label="item.name"
+                    :value="item.value">
+                    </el-option>
+                </el-select>
+                <el-select v-model="row.status" v-else placeholder="请选择" size="mini" @change="handleChange(row.id,$event)">
                     <el-option
                     v-for="item in statusList"
                     :key="item.value"