save project

diy2.py

@@ -2,7 +2,7 @@ i=3
 username = "python"
 userpassword = "123456"
 while True:
-    if i<=0
+    if i>0:
         name = input("请输入用户名:")
         password = input("请输入密码:")
         i-=1
@@ -16,5 +16,5 @@ while True:
             print("密码错误!请重新输入")
     else:
         print('坐下')
-        nexi()
+        exit()
 print("欢迎来到贝尔编程!")
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