diff --git a/README.md b/README.md
index 0dc8d69..28c6f9e 100644
--- a/README.md
+++ b/README.md
@@ -54,4 +54,6 @@ Type Abbreviation List(Currently not supported for wchar_t)
 [ Out ] >> [1:1-2B]:
 [ Out ] >> [2:2-3B]:
 [ Out ] >> [3:3-4B]:@
-```
\ No newline at end of file
+```
++ ### exit
+Enter exit to exit.
\ No newline at end of file
diff --git a/command.hpp b/command.hpp
index 2981cad..f1c4662 100644
--- a/command.hpp
+++ b/command.hpp
@@ -53,6 +53,9 @@ void usage(){
                     cout<<OUT<<"Wrong TypeName\n";
                 }
             }
+        }else if(u=="exit"){//exit
+            cout<<"[ Exit ]";
+            throw 0;
         }
     }
 }
diff --git a/main.cpp b/main.cpp
index c9da915..9a78c8f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -22,7 +22,13 @@ int main(){
         cout<<IN;
         //string h;
         //getline(cin,h);
-        usage();
+        try{
+            usage();
+        }catch(int err){
+            if(err==0){
+                return 0;
+            }
+        }
     }
     return 0;
 }
\ No newline at end of file