element-ui Upload 通过Js来触发上传操作
最简单的文件上传如下：
<el-upload class="upload-demo" action="https://jsonplaceholder.typicode.com/posts/" > <el-button size="small" type="primary">上传</el-button> </el-upload> 复制代码
现在有一个需求是点击“上传”不直接打开文件选择框，而是通过条件判断来决定是否打开文件选择框
<div> <el-upload ref="uploadRef" class="upload-demo" action="https://jsonplaceholder.typicode.com/posts/" /> <el-button size="small" type="primary" @click="handleUpload">点击上传</el-button> </div> // js方法 methods: { handleUpload(){ let flag = ture if(flag) { this.$refs.uploadRef.submit() } else { alert('无法选择文件') } } }