#include<stdio.h>

#include<stdlib.h>

void my(char *ccc, int bbb, FILE*read) {

for (size_t i = 0; i < bbb-1; i++)

{

char teamp= fgetc(read);

ccc[i] = teamp;

if (feof(read)!= 0) {

ccc[i] = '\0';

break;

}

else if (teamp == '\n') {

ccc[i+1] = '\0';

break;

}

}

}

void main() {

char abc[200] = { 0 };

printf("请输入原始地址");

scanf("%s", abc);

FILE*read = fopen(abc, "r");

char teamp[90] = { 0 };

if (teamp!=NULL) {

while (feof(read)==0) {

my(teamp, sizeof(teamp), read);

printf("%s", teamp);

}

}

fclose(read);

system("pause");

}

我们之前学习的fgetc和fputc，一次只能读入或者写出一个char字节。

为了能够让这两个函数更加好用一点，我们进行一下封装。

fgets和fputs分别是fgetc和fputc的封装.

fgets是读入一行.

fputs是写出一段文本.

 

//读入一行字符串

void my_fgets(char *p_buffer, int p_maxcount, FILE *p_read) {

 for (size_t i = 0; i < (p_maxcount - 1); i++) {

  char l_temp = fgetc(p_read);

  p_buffer[i] = l_temp;

  if (l_temp == '\n') {

   p_buffer[i + 1] = '\0';

   break;

  }

  else if (feof(p_read) != 0) {

   p_buffer[i] = '\0';

   break;

  }

 }

 

}

 

 

 

---

 

#include<stdio.h>

#include<stdlib.h>

#include<string.h>

 

void main1() {

 char l_in_path[200] = { 0 };

 printf("请输入要处理的文件:");

 scanf("%s", l_in_path);

 FILE * l_fp_read = fopen(l_in_path, "r");

 if (l_fp_read != NULL) {

  char l_temp[7] = { 0 };

 

  while (feof(l_fp_read) == 0) {

   fgets(l_temp, sizeof(l_temp), l_fp_read);

   printf("%s", l_temp);

  }

 }

 

 system("pause");

}

 

void main() {

 char l_out_path[200] = "456.txt";

 FILE * l_fp_write = fopen(l_out_path, "w");

 if (l_fp_write != NULL) {

  fputs("你好,我是一名中国人.\n我特别热爱编程!", l_fp_write);

 }

 fclose(l_fp_write);

 system("pause");

}