save project

1.py

+i=3
+username="python"
+userpassword="123456"
+while True:
+    if i>0:
+        name=input("输入账号")
+        password=input("输入密码")
+        i-=1
+        if name==username and password==userpassword:
+            print("登录成功!")
+            break
+        if name!=username:
+            print("账号错误，请重新输入！")
+            print("温馨提示还有"+str(i)+"次机会")
+            continue
+        if password!=userpassword:
+            print("密码输入有误，请重新输入！")
+            print("温馨提示还有"+str(i)+"次机会")            
+    else:
+        print("你的账号已被锁定，请带身份证来我司解锁")
+        exit()
+print("qld")
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diy2.py

+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("用户名不存在")
+    elif password!=userpassword；
+        print("密码错误!请重新输入")
+
+print("欢迎来到贝尔编程!")
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