save project

diy1.py

 username="python"
 username="python"
 userpassword="123456"
 userpassword="123456"
 while True:
 while True:
-    name=input("请输入")
-    password=input（"请输入"）
-    if name==username and password==userpassword:
-        print("成功")
-        break
-    elif name !=usernam:
-        print("请重新输入")
-        
-    else:
-        print("请重新输入")
-print("欢迎")        
+    if i>1:
+        name=input("请输入")
+        password=input（"请输入"）
+        i=i-1
+        if name==username and password==userpassword:
+            print("成功")
+            
+            
+            break
+        if name !=username:
+            print("请重新输入")
\ No newline at end of file
+            continue
+        if password !=userpassword:
+            print("请重新输入")
+     else:
+         print("已锁定")
+         exit()
+print("欢迎")       
\ No newline at end of file