[20]; // int score; //价格 }; int main() { struct student students[15];//创建train结构体 FILE *fp = fopen("student_file.txt", "r");// 打开文件并且让fp指向文件 if (fp == NULL) { fprintf(stderr, "文件打开失败.\n"); exit(EXIT_FAILURE); } char row[80]; char *token; ...
while(getline(txtStream,line))// line中不包括每行的换行符 { cout<<line<<endl; } //(2)使用eof()判断,会多出一行空的 while(!txtStream.eof()) { getline(txtStream,line); cout<<line<<endl; } //或者用字符数组存储 charbuffer[256]; while(!txtStream.eof())//eof():如果读文件到达文件...
int main(){ FILE *fp;if((fp=fopen("D:\\123.txt","r"))==NULL)//判断文件是否打开成功 {//读取D盘下,名为123的文本文件 printf("文件打开失败\n");exit(0);} else printf("文件打开成功\n");double a[N];for(int i=0;i<5;i++)//读取五个浮点型数据 fscanf(fp,"%lf,"...
int i = 0, j; FILE *fp;//文件指针 fp = fopen("in.txt", "r");//以文本方式打开文件。 if(fp == NULL) //打开文件出错。 return -1; while(fscanf(fp, "%d", &v[i]) != EOF) //读取数据到数组,直到文件结尾(返回EOF) i++; fclose(fp);//关闭...
int a[50][2];int i;fin = fopen("abc.txt","r"); // 打开文件,按读的方式打开 for (i=0;i<50;i++)fscanf(fin,"%d %d", &a[i][0], &a[i][1]); // 循环读 fclose(fin); //关闭文件 for (i=0;i<50;i++) printf("%d %d\n",a[i][0],a[i][1]); ...
int i = 0, j;FILE *fp;//文件指针 fp = fopen("in.txt", "r");//以文本方式打开文件。if(fp == NULL) //打开文件出错。return -1;while(fscanf(fp, "%d", &v[i]) != EOF) //读取数据到数组,直到文件结尾(返回EOF)i++;fclose(fp);//关闭文件 for(j = 0; j < i...
void main(void){ FILE *fp = fopen("arr.txt", "rb");int num;while(!feof(fp)){ fscanf(fp,"%d",&num);printf("%d ",num);} fclose(fp);}
include <stdio.h>int main(void) { FILE *fin = fopen("file.txt", "r"); /*假设文件名为file.txt*/ int a[100], i; for (i = 0; i < 100; i++) { fscanf(fin, "%d", &a[i]); } fclose(fin); /*此时已经读取完毕,可以进行接下来的处理了*/ ...
(思路是,把多余的那个逗号或者换行符按%c的方式读到junk里)include <stdio.h>int main(){int a[2][4];char junk;int i,j;FILE * fp;fp=fopen("filename.txt","r");for (i=0;i<2;i++)for (j=0;j<4;j++)fscanf(fp,"%d%c",&a[i][j],&junk);fclose(fp);//your ...