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public/frontend/layui-main/docs/upload/examples/accept.md

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+<div class="layui-btn-container">
+  <button type="button" class="layui-btn demo-class-accept" lay-options="{accept: 'file'}">
+    <i class="layui-icon layui-icon-upload"></i> 
+    上传文件
+  </button>
+  <button type="button" class="layui-btn demo-class-accept" lay-options="{
+    accept: 'file',
+    exts: 'zip|rar|7z'
+  }">
+    <i class="layui-icon layui-icon-upload"></i> 
+    只允许压缩文件
+  </button>
+  <button type="button" class="layui-btn demo-class-accept" lay-options="{accept: 'video'}">
+    <i class="layui-icon layui-icon-upload"></i> 
+    上传视频
+  </button>
+  <button type="button" class="layui-btn demo-class-accept" lay-options="{accept: 'audio'}">
+    <i class="layui-icon layui-icon-upload"></i>
+    上传音频
+  </button>
+</div>
+
+<!-- import layui -->
+<script>
+layui.use(function(){
+  var upload = layui.upload;
+  var layer = layui.layer;
+
+  // 渲染
+  upload.render({
+    elem: '.demo-class-accept', // 绑定多个元素
+    url: '', // 此处配置你自己的上传接口即可
+    accept: 'file', // 普通文件
+    done: function(res){
+      layer.msg('上传成功');
+      console.log(res);
+    }
+  });
+});
+</script>