c语言getc函数_C语言中的getc（）函数与示例

c语言getc函数

C语言中的getc()函数 (getc() function in C)

Prototype:

原型：

    int getc(FILE *filename);

Parameters:

参数：

    FILE *filename

Return type: int

返回类型： int

Use of function:

使用功能：

In the file handling, through the getc() function we take the next character from the input file stream and increment the file position pointer. The prototype of the function getc() is:

在文件处理中，通过getc()函数，我们从输入文件流中获取下一个字符，并递增文件位置指针。 函数getc()的原型为：

    int getc(FILE *filename);

It returns an integer value which is conversion of an unsigned char. It also returns EOF which itself is also an integer value. Whenever there is a binary file, check for EOF with the function feof().

它返回一个整数值，该值是无符号char的转换。它还返回EOF ，它本身也是一个整数值。只要有二进制文件，请使用feof()函数检查EOF 。

C语言中的getc()示例 (getc() example in C)

#include <stdio.h>
#include <stdlib.h>
int main(){
//Initialize the file pointer
FILE *f;
char ch;
//Create the file for write operation
f=fopen("includehelp.txt","w");
printf("Enter five character\n");
for(int i=0;i<5;i++){
//take the characters from the users
scanf("%c",&ch);
//write back to the file
putc(ch,f);
//clear the stdin stream buffer
fflush(stdin);
}
//close the file after write operation is over
fclose(f);
//open a file
f=fopen("includehelp.txt","r");
printf("Write operation is over and file is ready for read operation\n");
printf("\n...............print the characters..............\n\n");
while(!feof(f)){
//takes the characters in the character array 
ch=getc(f);
//and print the characters
printf("%c\n",ch);
}
fclose(f);
return 0;
}

Output

输出量