"No input file specified" problem handling

 Take on a new project , When it comes to configuration , I met “No input file specified” The problem of , First reaction , It's online search .

 There are many posts on this issue , in general , The reasons for the problems are ：
 One 、 It has something to do with the path , The path is not right ;
 Two 、 It could be a matter of authority , Such as , Access not allowed ;
 3、 ... and 、SCRIPT_FILENAME The variable is not set correctly 

 I am a  Win10  Environmental Science , Where's the clue , see access.log When , It is found that the returned status code is 404; The information in the error log is “GetFileAttributesEx() "D:\web\html\chuanyi1\admin   runk/" failed (123: The filename, directory name, or volume label syntax is incorrect), client: 127.0.0.1, server: admin.cy.com, request: "GET / HTTP/1.1", host: "admin.cy.com"”

 Actually , It's already obvious here , however , I didn't turn the corner at that time , I didn't look at it , I made a big circle .

 Write this document , Just to record .

 My problem is the configuration path , however , I didn't see it at first , What's the problem .

 my nginx The configuration file , Where the problem lies ：
——————————————————————————————————————————
root D:\web\html\chuanyi\admin\trunk\web

 The problem is in this place ！

 Take another look at the error report “"D:\web\html\chuanyi1\admin runk/" failed (123: The filename, directory name, or volume label syntax is incorrect)”

 Yes , Look carefully at the return admin and runk There's a space in the middle ！

 Why are there spaces , This is because “\t” Is parsed into tab 了 , There is no such path , Of course , You can't find the file ！

 After the backslash is replaced , Problem solving ！！！

 It was ignored at that time “\t”、“\n” These basic common sense , It really shouldn't be ！ therefore , It must be recorded here ！