save project

u.py

 usrename = 'python'
 userpassword = '123456'
-a=input('输入账号')
-q=input('密码')
-if a==usrename and q==userpassword:
-    print('ok')
-else:
-    print('ko')
+while True:
+
+    a=input('输入账号')
+    q=input('密码')
+    if a==usrename and q==userpassword:
+        print('ok')
+        break
+    if a != usrename:
+        print('账号ko')
+        continue
+    if a !=userpassword:
+        print('密码ko')
+print('sbsbsbsb')       
     
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