本地上传图片
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ruoyi-ui/src/components/ImageUploadLochost/index.vue
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231
ruoyi-ui/src/components/ImageUploadLochost/index.vue
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<template>
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<div class="component-upload-image">
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<el-upload
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multiple
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:action="uploadImgUrl"
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list-type="picture-card"
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:on-success="handleUploadSuccess"
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:before-upload="handleBeforeUpload"
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:limit="limit"
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:on-error="handleUploadError"
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:on-exceed="handleExceed"
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ref="imageUpload"
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:on-remove="handleDelete"
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:show-file-list="true"
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:headers="headers"
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:file-list="fileList"
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:on-preview="handlePictureCardPreview"
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:class="{hide: this.fileList.length >= this.limit}"
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>
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<i class="el-icon-plus"></i>
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</el-upload>
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<!-- 上传提示 -->
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<div class="el-upload__tip" slot="tip" v-if="showTip">
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请上传
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<template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template>
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<template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
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的文件
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</div>
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<el-dialog
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:visible.sync="dialogVisible"
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title="预览"
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width="800"
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append-to-body
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>
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<img
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:src="dialogImageUrl"
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style="display: block; max-width: 100%; margin: 0 auto"
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/>
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</el-dialog>
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</div>
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</template>
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<script>
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import { getToken } from "@/utils/auth";
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import { listByIds, delOss } from "@/api/system/oss";
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export default {
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props: {
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value: [String, Object, Array],
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// 图片数量限制
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limit: {
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type: Number,
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default: 5,
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},
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// 大小限制(MB)
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fileSize: {
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type: Number,
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default: 5,
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},
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// 文件类型, 例如['png', 'jpg', 'jpeg']
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fileType: {
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type: Array,
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default: () => ["png", "jpg", "jpeg"],
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},
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// 是否显示提示
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isShowTip: {
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type: Boolean,
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default: true
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}
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},
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data() {
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return {
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number: 0,
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uploadList: [],
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dialogImageUrl: "",
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dialogVisible: false,
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hideUpload: false,
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baseUrl: process.env.VUE_APP_BASE_API,
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uploadImgUrl: process.env.VUE_APP_BASE_API + "/system/oss/addPartsUpload", // 上传的图片服务器地址
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headers: {
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Authorization: "Bearer " + getToken(),
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},
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fileList: []
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};
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},
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watch: {
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value: {
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async handler(val) {
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if (val) {
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// 首先将值转为数组
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let list;
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if (Array.isArray(val)) {
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list = val;
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} else {
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await listByIds(val).then(res => {
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list = res.data;
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})
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}
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// 然后将数组转为对象数组
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this.fileList = list.map(item => {
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// 此处name使用ossId 防止删除出现重名
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item = { name: item.ossId, url: item.url, ossId: item.ossId };
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return item;
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});
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} else {
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this.fileList = [];
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return [];
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}
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},
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deep: true,
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immediate: true
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}
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},
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computed: {
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// 是否显示提示
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showTip() {
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return this.isShowTip && (this.fileType || this.fileSize);
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},
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},
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methods: {
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// 上传前loading加载
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handleBeforeUpload(file) {
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let isImg = false;
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if (this.fileType.length) {
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let fileExtension = "";
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if (file.name.lastIndexOf(".") > -1) {
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fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
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}
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isImg = this.fileType.some((type) => {
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if (file.type.indexOf(type) > -1) return true;
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if (fileExtension && fileExtension.indexOf(type) > -1) return true;
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return false;
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});
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} else {
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isImg = file.type.indexOf("image") > -1;
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}
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if (!isImg) {
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this.$modal.msgError(`文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`);
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return false;
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}
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if (this.fileSize) {
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const isLt = file.size / 1024 / 1024 < this.fileSize;
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if (!isLt) {
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this.$modal.msgError(`上传头像图片大小不能超过 ${this.fileSize} MB!`);
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return false;
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}
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}
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this.$modal.loading("正在上传图片，请稍候...");
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this.number++;
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},
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// 文件个数超出
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handleExceed() {
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this.$modal.msgError(`上传文件数量不能超过 ${this.limit} 个!`);
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},
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// 上传成功回调
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handleUploadSuccess(res, file) {
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if (res.code === 200) {
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this.uploadList.push({ name: res.data.fileName, url: res.data.url, ossId: res.data.ossId });
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this.uploadedSuccessfully();
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} else {
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this.number--;
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this.$modal.closeLoading();
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this.$modal.msgError(res.msg);
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this.$refs.imageUpload.handleRemove(file);
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this.uploadedSuccessfully();
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}
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},
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// 删除图片
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handleDelete(file) {
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const findex = this.fileList.map(f => f.name).indexOf(file.name);
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if(findex > -1) {
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let ossId = this.fileList[findex].ossId;
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delOss(ossId);
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this.fileList.splice(findex, 1);
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this.$emit("input", this.listToString(this.fileList));
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}
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},
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// 上传失败
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handleUploadError(res) {
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this.$modal.msgError("上传图片失败，请重试");
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this.$modal.closeLoading();
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},
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// 上传结束处理
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uploadedSuccessfully() {
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if (this.number > 0 && this.uploadList.length === this.number) {
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this.fileList = this.fileList.concat(this.uploadList);
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this.uploadList = [];
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this.number = 0;
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this.$emit("input", this.listToString(this.fileList));
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this.$modal.closeLoading();
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}
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},
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// 预览
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handlePictureCardPreview(file) {
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this.dialogImageUrl = file.url;
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this.dialogVisible = true;
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},
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// 对象转成指定字符串分隔
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listToString(list, separator) {
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let strs = "";
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separator = separator || ",";
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for (let i in list) {
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if (list[i].ossId) {
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strs += list[i].ossId + separator;
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}
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}
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return strs != "" ? strs.substr(0, strs.length - 1) : "";
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}
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}
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};
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</script>
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<style scoped lang="scss">
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// .el-upload--picture-card 控制加号部分
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::v-deep.hide .el-upload--picture-card {
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display: none;
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}
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// 去掉动画效果
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::v-deep .el-list-enter-active,
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::v-deep .el-list-leave-active {
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transition: all 0s;
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}
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::v-deep .el-list-enter, .el-list-leave-active {
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opacity: 0;
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transform: translateY(0);
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}
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</style>
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