Apache红灯的解决办法:
到【D:\LT_Server\phpstudy\Apache\bin】目录下按住Shift键+右键,选【powershll窗口】,在窗口中输入【.\httpd -t】,得到提示【AH00526: Syntax error on line 223 of D:/LT_Server/phpstudy/Apache/conf/httpd.conf:
DocumentRoot must be a directory】,意思就是在.../httpd.conf文件内的第223行目录地址错误,把【"C:/Users/Administrator/Desktop"】改成【"C:\Users\Public\Desktop"】即可。