作业

1、使用fgets统计给定文件的行号

#include <myhead.h>int main()
{FILE *file = NULL;char line[256];int line_number = 0;int k = 0;file = fopen("1.txt", "r");if (file == NULL){printf("无法打开文件\n");return -1;}while (fgets(line, sizeof(line), file) != NULL){if( line[strlen(line)]=='\0'){line_number++;}}fclose(file);printf("文件总行数： %d\n", line_number);return 0;
}

2、使用fgets、fputs完成两个文件的拷贝

#include <myhead.h>
int main()
{FILE *source_file = NULL;FILE *target_file = NULL;char line[256];source_file = fopen("source.txt", "r");if (source_file == NULL){printf("无法打开源文件\n");return 1;}target_file = fopen("target.txt", "w");if (target_file == NULL){printf("无法打开目标文件\n");fclose(source_file);return 1;}while (fgets(line, sizeof(line), source_file) != NULL){fputs(line, target_file);}fclose(source_file);fclose(target_file);printf("文件拷贝完成\n");return 0;
}