?? parse_test.c
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#include <stdio.h>#include <string.h>#define START_OF_FRAME 36 /* ASCII for $ */ #define CHANNEL_A 35 /* ASCII for # */#define CHANNEL_B 38 /* ASCII for & */#define CHANNEL_C 94 /* ASCII for ^ */main(){ int i, j, k; int area, angle, row, column; char thischar; FILE *inputfile; inputfile = fopen("newton.data", "r"); if (inputfile==NULL) { printf("Can't open input file\n"); exit(1); } while (!feof(inputfile)) { while (thischar = ((char)fgetc(inputfile) != START_OF_FRAME) && !(feof(inputfile)) ); fscanf( inputfile, "%2x", &i ); printf( "Found start of a data frame: %d\n", i ); thischar = (char)fgetc(inputfile); switch( thischar ) { case CHANNEL_A : printf("Found channel A\n"); fscanf( inputfile, "%2x:%2x:%2x:%2x", &area, &column, &row, &angle ); printf(" (x:%3d, y:%3d)\n", column, row ); break; case CHANNEL_B : printf("Found channel B\n"); fscanf( inputfile, "%2x:%2x:%2x:%2x", &area, &column, &row, &angle ); printf(" (x:%3d, y:%3d)\n", column, row ); break; case CHANNEL_C : printf("Found channel C\n"); fscanf( inputfile, "%2x:%2x:%2x:%2x", &area, &column, &row, &angle ); printf(" (x:%3d, y:%3d)\n", column, row ); break; default: printf(" ***** Found this: %c *****\n", thischar); } } fclose( inputfile );}?? 快捷鍵說明
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