save project

1.py

+i=3
 username="python"
 username="python"
 userpassword="123456"
 userpassword="123456"
 while True:
 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("用户名不存在，请重新输入！")
-        continue
-    if password != userpassword:
-        print("密码输入有误，请重新输入！")
-print("欢迎来到贝尔编程！")
+    if i>0:
+        name=input("请输入用户名：")
+        password=input("请输入密码：")
+        i-=1
+        if name==username and password==userpassword:
+            print("登录成功！")
+            break
+        if name!=username:
+            print("用户名不存在，请重新输入！")
+            continue
+        if password != userpassword:
\ No newline at end of file
+            print("密码输入有误，请重新输入！")
+    else:
+        print("请一个小时之后再来")
+        exit()
+    print("欢迎来到贝尔编程！")
\ No newline at end of file

2.py

+ bdvbnsm,..//,mnbvjkmljuhgbv nmb 
+ zEFrthiojkp
+  try:
+      jujhbv 
+  except expression as identifier:
+      pass
+      UnboundLocalErrory
\ No newline at end of file