save project

diy2.py

+username = "python"
+userpassword = "123456"
+i=0
+while i<5:#1>2  5==4   9>7
+    i=i+1
+    left = 5-i
+    left = str(left)
+    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！请重新登陆")       
+        print("还剩"+left+"次")
+        continue  #本意是继续
+    if password!=userpassword:
+        print("密码错误！请重新登陆")
+        print("还剩"+left+"次")
+    
+print("欢迎来到贝尔编程!")
\ No newline at end of file