save project

diy2.py

+i=3
+a="pyton"
+b="123"
+while True:
+    if i>0
+        aa=input("账号")
+        bb=input("密码")
+        i-=1
+        if a ==aa and b ==bb:
+            print("登录成功")
+            break
+        if a !=aa:
+            print("账号错误")
+            print("温馨提示：您还有"+str+"次机会")
+            continue
+        if b !=bb:
+            print("密码错误")
+            print("温馨提示：您还有"+str+"次机会")            
+    else:
+        print("锁定")
+        exit()
+print("欢迎")
+
+    
\ No newline at end of file