[問題] C語言讀取txt的問題

看板C_and_CPP (C/C++)作者gna239 ( Kaonashi)時間16年前 (2009/05/11 17:34)推噓3(3推 0噓 3→)

留言6則, 5人參與討論串1/1

我的問題是要從txt檔裡讀取裡面的成績然後成積再做排序的動作所以我把讀取成績的時候把它存到陣列裡面可是我txt檔的內容是 50 60 30 30 90 60 70 20 80 60 30 讀出來的卻是 V[0][0] = 50 V[1][0] = 60 V[2][0] = 30 V[3][0] = 30 V[4][0] = 90 V[5][0] = 60 V[6][0] = 70 V[7][0] = 20 V[8][0] = 80 V[9][0] = 60 V[10][0] = 0 最後一個值不對... 附上我的程式碼 #include <stdio.h> #include <stdlib.h> #include <string.h> #define FALSE -1 #define SUCCESS 0 #define MAX_NUM 1000 int main(void) { FILE *fp= NULL; char tmp[10] = {0}; char buffer[MAX_NUM] = {0}; int **V = NULL; int row = 0, column = 0, column_tmp = 0; int i = 0, j = 0; if( (fp = fopen("input.txt", "r")) == NULL ) return FALSE; while( fgets(buffer, MAX_NUM, fp) != NULL ) { row += 1; for(i=0, j=0; i<=(int)strlen(buffer); i++) { if( (buffer[i] == '\n') || (buffer[i] == '\t') ) { column_tmp++; j = 0; memset(tmp, 0, sizeof(tmp)); } else { tmp[j] = buffer[i]; j++; } } if( column_tmp > column ) column = column_tmp; column_tmp = 0; memset(buffer, 0, sizeof(buffer)); } V = (int **)malloc(row * sizeof(int *)); for(i=0; i<row; i++) V[i] = (int *)malloc(column * sizeof(int)); for(i=0; i<row; i++) for(j=0; j<column; j++) V[i][j] = 0; row = 0; column = 0; memset(tmp, 0, sizeof(tmp)); memset(buffer, 0, sizeof(buffer)); fseek(fp, 0, SEEK_SET); while( fgets(buffer, MAX_NUM, fp) != NULL ) { for(i=0, j=0; i<=(int)strlen(buffer); i++) { if( (buffer[i] == '\n') || (buffer[i] == '\t') ) { V[row][column_tmp] = atoi(tmp); column_tmp += 1; j = 0; memset(tmp, 0, sizeof(tmp)); } else { tmp[j] = buffer[i]; j++; } } row += 1; if( column_tmp > column ) column = column_tmp; column_tmp = 0; memset(buffer, 0, sizeof(buffer)); } fclose(fp); for(i=0; i<row; i++) for(j=0; j<column; j++) printf("V[%d][%d] = %d\n", i, j, V[i][j]); system("pause"); return SUCCESS; } 有一點長...拜託大家幫幫忙 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.137.252.52

[問題] C語言 讀取txt的問題

[問題] C語言讀取txt的問題