save project

diy2.py

-o=0
+o=3
 username = "python"
 userpassword = "123456"
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break
-    if name!=username:
-        print("用户名错误")
-        o+=1
-        continue
-    if password!=userpassword:
-        print("密码错误")
-        continue
-    if o > 3 :
-        print('sb想盗号')
-        exit()
+    if o > 0 :
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        o-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name!=username:
+            print("用户名错误")
+            print('你还有'+str(o)+'次登录机会')
+            
+            continue
+            
+        if password!=userpassword:
+            print("密码错误")
+            print('你还有'+str(o)+'次登录机会')
+            continue
+        if o == 3 :
+            print('sb想盗号')
+            exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file