placeholder rename

src/views/components/complete-profile.vue

@@ -7,7 +7,7 @@
         <el-row :gutter="20">
           <el-col :span="24">
             <el-form-item prop="username" label="姓 名">
-              <el-input type="text" v-model="formData.username" placeholder="请输入姓名"></el-input>
+              <el-input type="text" v-model="formData.username" placeholder="请输入学生姓名"></el-input>
             </el-form-item>
           </el-col>
           <!-- 暂时不需要学年，学年从年级上选择 -->