匹配优先级:=, ^~, ~/~*,/
location优先级:(location =) > (location 完整路径) > (location ^~ 路径) > (location ~,~* 正则顺序) > (location 部分起始路径) > (/)
匹配优先级:=, ^~, ~/~*,/
location优先级:(location =) > (location 完整路径) > (location ^~ 路径) > (location ~,~* 正则顺序) > (location 部分起始路径) > (/)