fix

@@ -230,7 +230,7 @@ const sendCodeToMobileAPI = (req, res, next) => {
             };
 
             if (req.session.captchaValidCount === 0) {
-                req.session.captcha = void 0; // 验证码 用过就扔
+                req.session.captcha = null; // 验证码 用过就扔
                 jsonData.changeCaptcha = true;
             }
 

@@ -161,31 +161,30 @@ const local = {
 
         if (count == null) { // eslint-disable-line
             _.set(req.session, 'login.errorCount', 3);
-        } else if (count <= 0) {
+        }
+
+        if (count <= 0) {
             let captchaInput = req.body.captcha;
             let captchaCode = _.get(req.session, 'captcha');
 
-            let errorCount = _.get(req.session, 'captchaValidCount', 4); // 初始1次 + 后续4次， 同一个验证码 共5次
+            let errorCount = _.get(req.session, 'captchaValidCount'); // 初始1次 + 后续4次， 同一个验证码 共5次
 
-            if (!errorCount) {
-                _.set(req.session, 'captchaValidCount', 4);
-            } else {
-                --req.session.captchaValidCount;
-            }
-
-            if (!captchaInput || !captchaCode || captchaInput !== captchaCode) {
-                let jsonData = {
-                    code: 400,
-                    message: '请将图片旋转到正确方向',
-                    captchaShow: true
-                };
+            let jsonData = {
+                code: 400,
+                message: '请将图片旋转到正确方向',
+                captchaShow: true
+            };
 
+            --req.session.captchaValidCount;
 
-                if (req.session.captchaValidCount === 0) {
-                    req.session.captcha = void 0; // 验证码 用过就扔
-                    jsonData.changeCaptcha = true;
-                }
+            if (!errorCount) {
+                _.set(req.session, 'captchaValidCount', 5);
+                // delete req.session.captcha; // 验证码 用过就扔
+                req.session.captcha = null;
+                jsonData.changeCaptcha = true;
+            }
 
+            if (!(captchaInput && captchaCode && captchaInput === captchaCode)) {
                 res.json(jsonData);
 
                 return;

@@ -162,7 +162,7 @@ exports.indexCheck = (req, res, next) => {
     // 校验 失败
     em.on('reject', error => {
         if (req.session.captchaValidCount === 0) {
-            req.session.captcha = void 0; // 验证码 用过就扔
+            req.session.captcha = null; // 验证码 用过就扔
             error.changeCaptcha = true;
         }
 
@@ -178,7 +178,7 @@ exports.indexCheck = (req, res, next) => {
         return em.emit('reject', {code: 400, message: '请填写手机号'});
     } else if (!captcode) {
         return em.emit('reject', {code: 400, message: '请填写验证码'});
-    } else if (captcode !== captcodeValid) {
+    } else if (!(captcodeValid && captcode === captcodeValid)) {
         return em.emit('reject', {code: 400, message: '请将图片旋转到正确位置'});
     }