diff --git "a/JunFaceRecognition/JunFaceRecognition/\345\212\250\346\200\201\344\272\272\350\204\270\350\257\206\345\210\253/Views/JunPreviewView.swift" "b/JunFaceRecognition/JunFaceRecognition/\345\212\250\346\200\201\344\272\272\350\204\270\350\257\206\345\210\253/Views/JunPreviewView.swift"
index 9f07678..b51270f 100644
--- "a/JunFaceRecognition/JunFaceRecognition/\345\212\250\346\200\201\344\272\272\350\204\270\350\257\206\345\210\253/Views/JunPreviewView.swift"
+++ "b/JunFaceRecognition/JunFaceRecognition/\345\212\250\346\200\201\344\272\272\350\204\270\350\257\206\345\210\253/Views/JunPreviewView.swift"
@@ -52,9 +52,11 @@ extension JunPreviewView: HandleMetadataOutputDelegate{
 
         //3. 遍历所有的face
         for i in 0..<transformFaces.count {
+            
             guard let face = transformFaces[i] as? AVMetadataFaceObject  else { return }
+            
             //3.1 判断是否包含该faceID``
-            if lostFaces.contains("\(face.faceID)"){
+            if lostFaces.contains("\(face.faceID)") && lostFaces.count > i {
                 lostFaces.remove(at: i)
             }