更新验证码逻辑

public/themes/default/views/app/auth/login.blade.php

@@ -258,6 +258,11 @@
 
             var mobile_captcha = new TencentCaptcha('196587903', mobile_captcha_callback, {});
             $('.btn-getcode').on('click', function () {
+                var mobile = $("input[name='mobile']").val();
+                if(mobile == null || mobile == ''){
+                    $("#message_mobile").text("请输入手机号码");
+                    return false;
+                }
                 mobile_captcha.show();
 
             });