<{span}>目标站禁止注册用<{/span}><{span}>户，找回密码处随便输入用户名提示：<{/span}><{span}>“<{/span}><{span}>此用户不存在<{/span}><{span}>”<{/span}><{span}>，<{/span}><{span}>你觉得这里怎样利用？<{/span}>