fix: 问题修改

src/views/system/sysSecuritySettings.vue

@@ -128,9 +128,9 @@
             <el-button
             <el-button
               size="small"
               size="small"
               @click="sendVerificationCode"
               @click="sendVerificationCode"
-              :disabled="countdownConfig[currentMethod]?.loading">
+              :disabled="countdownConfig[currentMethod] && countdownConfig[currentMethod].loading">
               {{
               {{
-                countdownConfig[currentMethod]?.loading
+                countdownConfig[currentMethod] && countdownConfig[currentMethod].loading
                   ? `${countdownConfig[currentMethod].countdown}s后重发`
                   ? `${countdownConfig[currentMethod].countdown}s后重发`
                   : '发送验证码'
                   : '发送验证码'
               }}
               }}