因网上的中文验证很少，且还要组件，经过修正及调试做出来了，免费分享给大家，本验证码还加入AJAX刷新验证，使用户看不清楚即时刷新-Arising from on-line verification of the very few Chinese, and even components, as amended, and debugging to do, and free for everyone to share, the authentication code is also set to join AJAX authentication, so users do not immediately refresh