save project

diy2.py

+i=3
+u = "python"
+w = "123456"
+while True:
+    if i>0:
+        n = input("请输入用户名:")
+        p = input("请输入密码:")
+        i-=1
+        if u == n and w == p:
+            print("登录成功!")
+            break
+        if n != u:
+            print('用错')
+            print('还剩'+str(i)+'次')           
+            continue
+        if p != w:
+            print('密错')    
+            print('还剩'+str(i)+'次')
+    else:
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file