下載安裝好Xampp直接start apache服務，可能發現443埠被其他服務所佔有，這時候我有必要修改一下apache伺服器的埠號。

步驟:

點選Config按鈕，可以看到有兩個配置檔案httpd.conf和httpd-ssl.conf；現在要根據埠號錯誤來更改apache的埠號，如果是port 443錯誤，更改http-ssl.conf檔案中的Listen監聽埠，如果是80錯誤，更改httpd.conf檔案中Listen

開啟httpd.conf檔案,找到設定埠的配置資訊如下:

#
# Listen: Allows you to bind Apache to specific IP addresses and/or
# ports, instead of the default. See also the <VirtualHost>
# directive.
#
# Change this to Listen on specific IP addresses as shown below to 
# prevent Apache from glomming onto all bound IP addresses.
#
#Listen 12.34.56.78:80

開啟httpd-ssl.conf檔案,找到設定埠的配置資訊如下:
#
# When we also provide SSL we have to listen to the 
# standard HTTP port (see above) and to the HTTPS port
#
# Note: Configurations that use IPv6 but not IPv4-mapped addresses need two
#       Listen directives: "Listen [::]:443" and "Listen 0.0.0.0:443"
#
Listen 443
 

注意：配置檔案比較長，按Ctrl+F查詢關鍵字就快多了，比如直接找80或者443就行了，馬上跳到該段的配置資訊了。

直接更改下Listen的埠號就可以。