限制6位数

pages/login/index.vue

@@ -14,7 +14,7 @@
 						</u-field>
 					</view>
 					<view style="margin-top: 30rpx;">
-						<u-field v-model="code" :placeholder="$t('login.code')" label-width="50">
+						<u-field v-model="code" :placeholder="$t('login.code')" label-width="50" maxlength="6">
 							<u-icon slot="icon" name="lock" size="36" color="#666666"></u-icon>
 							<u-button v-if="send!='zh'" size="mini" slot="right" type="primary" @click="getCode" shape="circle" :loading="codeLoading">{{codeText}}</u-button>
 							<u-button v-else size="mini" slot="right" type="primary" @click="getCode" shape="circle" :loading="codeLoading">{{codeText}}</u-button>