diff --git a/history/001_first_version/src/main/java/com/github/drinkjava2/frog/env/Env.java b/history/001_first_version/src/main/java/com/github/drinkjava2/frog/env/Env.java
index 089c9503899baa1da64441ce8727cd431f89e9db..0beea2dc9ac8fd087427481d3c3e0ba8ebff83fb 100644
--- a/history/001_first_version/src/main/java/com/github/drinkjava2/frog/env/Env.java
+++ b/history/001_first_version/src/main/java/com/github/drinkjava2/frog/env/Env.java
@@ -37,7 +37,7 @@ public class Env extends JPanel {
 
 	public int FOOD_QTY = 2000; // as name
 
-	public int EGG_QTY =80; // as name
+	public int EGG_QTY = 4; // as name
 
 	public List<Frog> frogs = new ArrayList<Frog>();
 	public List<Egg> eggs;
@@ -62,12 +62,12 @@ public class Env extends JPanel {
 			}
 		}
 		Random rand = new Random();
-		for (int i = 0; i < eggs.size(); i++) { // 1个Egg生出4个Frog
-			for (int j = 0; j < 4; j++) {
+		for (int i = 0; i < eggs.size(); i++) { // 1个Egg生出EGG_QTY个Frog
+			for (int j = 0; j < EGG_QTY; j++) {
 				frogs.add(new Frog(ENV_XSIZE / 2 + rand.nextInt(90), ENV_YSIZE / 2 + rand.nextInt(90), eggs.get(i)));
 			}
 		}
-		System.out.println("Created "+4*eggs.size() +" frogs");
+		System.out.println("Created "+EGG_QTY*eggs.size() +" frogs");
 		for (int i = 0; i < FOOD_QTY; i++)
 			foods[rand.nextInt(ENV_XSIZE - 3)][rand.nextInt(ENV_YSIZE - 3)] = 1;
 	}