錯誤提示：
9:15:53 AM [Apache] Error: Apache shutdown unexpectedly.
9:15:53 AM [Apache] This may be due to a blocked port, missing dependencies,
9:15:53 AM [Apache] improper privileges, a crash, or a shutdown by another method.
9:15:53 AM [Apache] Press the Logs button to view error logs and check
9:15:53 AM [Apache] the Windows Event Viewer for more clues
9:15:53 AM [Apache] If you need more help, copy and post this
9:15:53 AM [Apache] entire log window on the forums
解決方法：
1．80端口沖突，解決方法：
打開目錄C:\xampp\apache\conf(我的安裝目錄為C:\xampp)下的httpd.conf文件，將Listen 80和 ServerName localhost:80中的80改為8081或其它值（盡量不要使用0－1023端口，這個是系統保留端口），要保持一致。
2．監聽端口443沖突，解決方法：
打開目錄C:\xampp\apache\conf\extra (我的安裝目錄為C:\xampp)下的httpd-ssl.conf文件，將Listen 443這句注釋掉：# Listen 443或將443改為4433或其它值（盡量不要使用0－1023）。
再修改了以上兩個端口后，再次啟動apache，it works！
9:18:03 AM [Apache] Problem detected!
9:18:03 AM [Apache] Port 80 in use by "D:\Program Files\Skype\Phone\Skype.exe" with PID 4808!
9:18:03 AM [Apache] Apache WILL NOT start without the configured ports free!
9:18:03 AM [Apache] You need to uninstall/disable/reconfigure the blocking application
9:18:03 AM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
9:18:03 AM [Apache] Problem detected!
9:18:03 AM [Apache] Port 443 in use by "D:\Program Files\Skype\Phone\Skype.exe" with PID 4808!
9:18:03 AM [Apache] Apache WILL NOT start without the configured ports free!
9:18:03 AM [Apache] You need to uninstall/disable/reconfigure the blocking application
9:18:03 AM [Apache] or reconfigure Apache and the Control Panel to listen on a different port
9:18:03 AM [Apache] Attempting to start Apache app...
9:18:03 AM [Apache] Status change detected: running