diff --git a/app/src/main/java/com/yuzhi/fine/common/AppContext.java b/app/src/main/java/com/yuzhi/fine/common/AppContext.java
index 806573f..69bae28 100644
--- a/app/src/main/java/com/yuzhi/fine/common/AppContext.java
+++ b/app/src/main/java/com/yuzhi/fine/common/AppContext.java
@@ -12,6 +12,7 @@ public AppContext() {
         app = this;
     }
 
+    //这里为什么要用单例模式？，一个应用只存在一个Application，所以我觉得这里可以不这样写。
     public static synchronized AppContext getInstance() {
         if (app == null) {
             app = new AppContext();
@@ -31,4 +32,4 @@ private void registerUncaughtExceptionHandler() {
         Thread.setDefaultUncaughtExceptionHandler(AppException.getAppExceptionHandler());
     }
 
-}
\ No newline at end of file
+}