为空判断

BFRecordScreenKit/Classes/RecordScreen/Controller/BFRecordScreenController.swift

@@ -1057,7 +1057,7 @@ public class BFRecordScreenController: BFBaseViewController {
             cShowHUB(superView: nil, msg: "最短录制1秒")
         }
         // 删除文件
-        recorderManager?.deleteFile(outfile: voiceModel?.wavFilePath)
+        recorderManager?.deleteFile(outfile: voiceModel?.wavFilePath ?? "")
         var subtitleCount = itemModels[currItemModelIndex].titleStickers.count
         BFLog(2, message: "删除\(voiceModel?.wavFilePath ?? "")对应的字幕 前 count\(subtitleCount)")
         if subtitleCount > 0 {