C Language File operation type Quick check

meaning of the way the file is used
"RT" read-only open a text file, allowing only read data
"WT" only writes Open or create a text file, allowing only write data
"at" Appends open a text file and writes data at the end of the file
"RB" read-only open a binary file, allowing only read data
"WB" only writes open or create a binary file, allowing only write data
"AB" appends open a binary file and writes data at the end of the file
"rt+" read and write open a text file that allows read and write
"wt+" read/write open or create a text file that allows read and write
"at+" read and write open a text file, allow reading, or append data at the end of the file
"rb+" read and write open a binary file that allows read and write
"wb+" read-write open or create a binary file that allows read and write
"ab+" read and write open a binary file, allow reading, or append data at the end of the file

C Language File operation type Quick check