diff --git a/main.py b/main.py
index 65227da..104ecc8 100644
--- a/main.py
+++ b/main.py
@@ -61,8 +61,8 @@ class MyPlugin(Star):
         cur = conn.cursor()
         time = [];V = [];a = [];b = []
         for i in range(0,10):
-            time.append(round(random.uniform(1, 600), 2)) if i==0 else time.append(round(random.uniform(1, time[i-1]), 2))
-            V.append(round(random.uniform(0.01,100), 2))
+            time.append(round(random.uniform(1, 600), 2))
+            V.append(round(random.uniform(0.01,100), 2)) if i==0 else V.append(round(random.uniform(1, V[i-1]), 2))
             a.append(time_long(time[i]))
             b.append(volume(V[i]))  
         sql = "INSERT INTO dajiao (openid, timelong, volume) VALUES (%s, %s, %s),(%s, %s, %s),(%s, %s, %s),(%s, %s, %s),(%s, %s, %s),(%s, %s, %s),(%s, %s, %s),(%s, %s, %s),(%s, %s, %s),(%s, %s, %s)"