save project

diy2.py

+username="python"
+userpassword="123456"
+i=3
+while True:
+    name=input("请输入用户名:")
+    password=input("请输入密码:")
+    i=i-1
+    if i<=0:
+        print("账号已锁定")
+        exit()
+    if  name==username and password==userpassword:
+        print("登陆成功!")
+        break
+    if name!=username:
+        print("用户名错误")
+        print("还剩"+str(i)+"机会")
+        continue
+    if password!=userpassword:
+        print("密码错误")
+        print("还剩"+str(i)+"机会")
+print("欢迎来到贝尔编程!")
\ No newline at end of file