Text content is: [abc123] | | [] [30]
The space may or may not have string,
The code below

 # include & lt; Stdio. H> 
# define NEGFMT "% [^]]" 
# define DECFMT "% d 
"Int main () {
Char a1 [10], a2 [10]. 
Int a3; 
The FILE * fp. 
Fp=fopen (" data1. TXT ", "r"); 
Fscanf (fp, "[]" NEGFMT "| | [" NEGFMT"] [" DECFMT "] ", a1, a2, & amp; A3); 
Printf (" % s \ n \ n % s % d ", a1, a2, a3); 
return 0; 
} 

The final output is
Abc123

0
Dear leaders, how to keep my a3 accurately, because it is the university curriculum design, unable to change the text content, troublesome everybody bosses