XAMPP, Apache - Error: Apache shutdown unexpectedly 解決方法

久了不使用 xampp,今早使用 xampp的時候，報錯
08:50:25 [Apache] Status change detected: running
08:50:26 [Apache] Status change detected: stopped
08:50:26 [Apache] Error: Apache shutdown unexpectedly.
08:50:26 [Apache] This may be due to a blocked port, missing dependencies,
08:50:26 [Apache] improper privileges, a crash, or a shutdown by another method.
08:50:26 [Apache] Press the Logs button to view error logs and check
08:50:26 [Apache] the Windows Event Viewer for more clues
08:50:26 [Apache] If you need more help, copy and post this
08:50:26 [Apache] entire log window on the forums

出現這種原因，很多時候是因為port 口被佔用了。
解決方法
1. 修改E:\xampp\apache\http.conf 檔案 ，或者這樣開啟，如圖所示：
修改listen port

ServerName localhost:80

將這裡的 80 to 8081

ServerName localhost:8081
2.修改E:\xampp\apache\conf\extra\httpd-ssl.conf 或這樣開啟，如圖所示：

修改listen port

3.關閉xampp，然後重啟service ，這樣就OK了。

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