Program problem-CodePudding

Running results and you won't come?

CodePudding user response:

Take a look at your file no

CodePudding user response:

In the execution of fp is NULL body added:

 printf (" % s \ n ", the strerror (errno));

You can have a look at the failure to open the file

CodePudding user response:

reference 2 building self-confidence boy reply:

in the execution of fp is NULL body added:
 printf (" % s \ n ", the strerror (errno)); 
Can have a look at the failure to open the file

is invalid argument but I don't know how to change

CodePudding user response:

reference zedd3337502212 reply: 3/f

Quote: refer to the second floor confident boy reply:

In the execution of fp is NULL body added:
printf (" % s \ n ", the strerror (errno));

Can have a look at the failure to open the file

is invalid argument but I don't know how to change

https://blog.csdn.net/hpu11/article/details/52693581
If the second parameter is no problem, it is not clear,