save project

diy1.py

 username = "python"    
+i=3
 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")
-    if password!=userpassword:
-        print("密码错误")
+while True:
+    if i > 0:  
+        name=input("请输入用户名:")
+        i=i-1
+        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")
+        if password!=userpassword:
+            print("密码错误")
+    else:
+        print("次数已用完,请过一小时在来")            
 print("欢迎来到贝尔星球")