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				@@ -77,26 +77,24 @@ class INIntroduceController: BFBaseViewController { 
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				     } 
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				     override func backBtnClick() { 
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				-        let remindData = BFBaseModel() 
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				-        remindData.summary = "退出将不会保存当前操作" 
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				-        let alertV = BFRemindView(frame: view.bounds) 
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				-        alertV.isBanned = true 
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				-        alertV.confirmBtn.setTitle("不退出", for: .normal) 
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				-        alertV.confirmBtn.titleLabel?.font = UIFont.systemFont(ofSize: 20, weight: .medium) 
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				-        alertV.cancelBtn.setTitle("确认退出", for: .normal) 
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				-        alertV.cancelBtn.titleLabel?.font = UIFont.systemFont(ofSize: 20, weight: .medium) 
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				-        alertV.contentLab.font = UIFont.systemFont(ofSize: 20, weight: .medium) 
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				-        alertV.remindData = remindData 
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				-        alertV.confirmBtn.setTitleColor(UIColor.black, for: .normal) 
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				-        alertV.cancelBtn.setTitleColor(UIColor.red, for: .normal) 
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				-        alertV.contentLab.textColor = .black 
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				-        alertV.remindBlock = { [weak self] item, _ in 
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				-            if item.tag == 1 { // 确定返回到上一层 
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				-                self?.recordScreenVC.backBtnClick() 
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				-                self?.super_back() 
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				-            } 
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				-        } 
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				-        UIApplication.shared.keyWindow?.addSubview(alertV) 
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				+   
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				+        let alertController = UIAlertController(title: "退出将不会保存当前操作", 
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				+                       message: "", preferredStyle: .alert) 
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				+        let cancelAction = UIAlertAction(title: "不退出", style: .default, handler: nil) 
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				+ 
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				+        let okAction = UIAlertAction(title: "确认退出", style: .cancel, handler: {[weak self] 
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				+           action in 
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				+           print("点击了确定") 
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				+           self?.recordScreenVC.backBtnClick() 
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				+            self?.super_back() 
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				+        }) 
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				+        okAction.setValue(UIColor.red, forKey:"titleTextColor") 
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				+ 
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				+        alertController.addAction(okAction) 
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				+        alertController.addAction(cancelAction) 
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				+ 
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				+        self.present(alertController, animated: true, completion: nil) 
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				+         
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				     } 
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				     private func super_back() { 
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