diff --git a/SwiftProject/SwiftProject/AppDelegate.swift b/SwiftProject/SwiftProject/AppDelegate.swift
index e49b928..a941f7e 100644
--- a/SwiftProject/SwiftProject/AppDelegate.swift
+++ b/SwiftProject/SwiftProject/AppDelegate.swift
@@ -48,6 +48,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
             if data != nil {
                 let crushStr:String? = String.init(data: data! as Data, encoding: String.Encoding.utf8)
                 Analytics.logEvent("app_crash", parameters: ["crashInfo":crushStr ?? ""])
+                CopyCrashHandler.cleanCrashInfo()
             }
 
         }
diff --git a/SwiftProject/SwiftProject/CopyCrashHandler.swift b/SwiftProject/SwiftProject/CopyCrashHandler.swift
index 22cf07a..5c2d963 100644
--- a/SwiftProject/SwiftProject/CopyCrashHandler.swift
+++ b/SwiftProject/SwiftProject/CopyCrashHandler.swift
@@ -6,78 +6,24 @@
 //
 
 import Foundation
-//public class CopyCrashHandler
-//{
-//    public static func setup(callBack:@escaping CrashCallback){
-//        crashCallBack = callBack;
-//        registerSignalHanlder();
-//    }
-//}
-//
-//public typealias Completion = ()->Void;
-//public typealias CrashCallback = (String,Completion)->Void;
-// 
-//public var crashCallBack: CrashCallback?
-//
-//
-//
-//
-//func signalHandler(signal:Int32) -> Void {
-//    let stackTrace = Thread.callStackSymbols.joined(separator: "\r\n")
-//    crashCallBack?(stackTrace,{
-//        unregisterSignalHandler();
-//        exit(signal);
-//    });
-//}
-// 
-//func registerSignalHanlder()
-//{
-//    objc_setUncaughtExceptionHandler { (_response:Any?) in
-//        if let signal = _response as? Int32 {
-//            signalHandler(signal: signal)
-//        }
-//        else if let exception = _response as? NSException {
-//            crashCallBack?(exception.reason ?? exception.callStackSymbols.joined(separator: "\r\n"),{
-//                unregisterSignalHandler();
-//                exception.raise()
-//            });
-//        }
-//    }
-//    
-//    signal(SIGINT,  signalHandler);
-//    signal(SIGSEGV, signalHandler);//野指针，僵尸对象
-//    signal(SIGTRAP, signalHandler);
-//    signal(SIGABRT, signalHandler);
-//    signal(SIGILL,  signalHandler);
-//    signal(SIGBUS,  signalHandler);
-//    signal(SIGFPE,  signalHandler);
-//    signal(SIGTERM, signalHandler);
-//    signal(SIGKILL, signalHandler);//CPU无法执行的代码(比如无效指令、除以0等)
-//    signal(SIGPIPE, signalHandler);
-//}
-// 
-//func unregisterSignalHandler()
-//{
-//    signal(SIGINT,  SIG_DFL);
-//    signal(SIGSEGV, SIG_DFL);
-//    signal(SIGTRAP, SIG_DFL);
-//    signal(SIGABRT, SIG_DFL);
-//    signal(SIGILL,  SIG_DFL);
-//    signal(SIGBUS,  SIG_DFL);
-//    signal(SIGFPE,  SIG_DFL);
-//    signal(SIGTERM, SIG_DFL);
-//    signal(SIGKILL, SIG_DFL);
-//    signal(SIGPIPE, SIG_DFL);
-//}
-// 
-//
 
 public class CopyCrashHandler {
     public class func getdataPath() -> String{
             let str = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.cachesDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last!
             let urlPath = str.appending("Exception.txt")
             return urlPath
+    }
+    
+    public class func cleanCrashInfo() {
+        let path = CopyCrashHandler.getdataPath()
+        do{
+            if FileManager.default.fileExists(atPath: path) {
+                try FileManager.default.removeItem(atPath: path)
+            }
+        }catch{
         }
+    }
+    
     public class func setDefaultHandler() {
             NSSetUncaughtExceptionHandler { (exception) in
                 let arr:NSArray = exception.callStackSymbols as NSArray
@@ -95,8 +41,7 @@ public class CopyCrashHandler {
                     }
                     
                     try url.write(toFile: path, atomically: true, encoding: String.Encoding.utf8)
-                }catch{ error
-                    print("\(error)")
+                }catch{ 
                 }
             }
       }