root 与 alias 的区别

        location ^~ /static {
             root /home/lushijie/www.test.com;
        }

        #http://120.27.105.225/static/a.gif
        #在 /home/lushijie/www.test.com/static 目录下寻找 a.gif



        location ^~ /resource {
           alias /home/lushijie/www.test.com;
        }

        #http://120.27.105.225/resource/a.gif
        #在 /home/lushijie/www.test.com 目录下寻找 a.gif

= （精确匹配）

= 进行精确匹配，如果发现精确匹配，nginx停止搜索其他匹配

        location = /71team { 
            echo '规则1-1 = /71team';
        }
        location = /71team123 {
            echo '规则1-2 = /71team123';
        }


        #http://120.27.105.225/71team         规则1-1 = /71team
        #http://120.27.105.225/71team123      规则1-2 = /71team123
        #http://120.27.105.225/71team12       Not Found
        #http://120.27.105.225/71team/        Not Found HTTP段 （#此时 server_name_in_redirect off；）

^~（开头最长匹配）

^~ 普通开头字符最长匹配，长的块规则将被优先和查询匹配，如果该项匹配还需去看有没有更长的匹配

        location ^~ /72team {
            echo '规则2-1 ^~ /72team';
        }
        location ^~ /72team123 {
            echo '规则2-2 ^~ /72team123';
        }

        #http://120.27.105.225/72team         规则2-1 ^~ /72team
        #http://120.27.105.225/72team123      规则2-2 ^~ /72team123
        #http://120.27.105.225/72team12       规则2-1 ^~ /72team
        #http://120.27.105.225/72team/        规则2-1 ^~ /72team

空 (最长匹配)

/ 表示普通字符匹配, 长的块规则将被优先和查询匹配，如果该项匹配还需去看有没有更长的匹配

        location  /75team {
            echo '规则5-1 /75team';
        }

        location  /75team123 {
            echo '规则5-2 /75team123';
        }

        #http://120.27.105.225/75team         规则5-1 /75team
        #http://120.27.105.225/75team123      规则5-2 /75team123
        #http://120.27.105.225/75team12       规则5-1 /75team
        #http://120.27.105.225/75team/        规则5-1 /75team

~ / ~*（区分 / 不区分大小写正则匹配）

如果找到相应的匹配，则nginx停止搜索其他匹配

        location ~ /74team {
            echo '规则4-1 ~ /74team ';
        }

        location ~ /74team123 {
            echo '规则4-2 ~ /74team123';
        }

        #http://120.27.105.225/74team         规则4-1 ~ /74team
        #http://120.27.105.225/74team123      规则4-1 ~ /74team
        #http://120.27.105.225/74team12       规则4-1 ~ /74team
        #http://120.27.105.225/74team/        规则4-1 ~ /74team

        ~* 亦如是

冲突配置

^~与空 如果重复了，会有冲突！