//Quick concatenate, I should use concatain but nah. snprintf(filePath,sizeof(filePath), "%s/%s/%s",FOLDER_MAIN, "test", "data.txt"); fp = fopen(filePath, "r"); if (fp != NULL) while ((read = getline(&line, &len, fp)) != -1) if(startsWith(line, "value:")) removeSubstring(line, "value:"); removeSubstring(line, " "); removeSubstring(line, "\t"); removeSubstring(line, "\n"); printf("%d\t%s\n", 0, line); fclose(fp); //Free line pointer, is it really needed ? if (line) free(line); int StartsWith(const char *a, const char *b) if(strncmp(a, b, strlen(b)) == 0) return 1; return 0; void removeSubstring(char *s,const char *toremove) while( s=strstr(s,toremove)) memmove(s,s+strlen(toremove),1+strlen(s+strlen(toremove))); 另外，'free(line)'也使程序崩溃。 我添加了removeSubstring和StartsWith函数，希望能有所帮助。总之，我认为这对程序影响不大，因为问题出在FP上......