输入与输出

标准库中的输入与输出函数包括：

• int scanf(const char *format, ...)
• int printf(const char *format, ...)
• int getchar(void)
• int putchar(int c)
• char gets(char s)
• int puts(const char *s)
• int sprintf(char s, const char format, ...)
• int snprintf(char s, size_t n, const char format, ...)

文件操作

• FILE fopen(const char filename, const char *mode)
• int fclose(FILE *stream)
• size_t fread(void ptr, size_t size, size_t nmemb, FILE stream)
• size_t fwrite(const void ptr, size_t size, size_t nmemb, FILE stream)
• int fprintf(FILE stream, const char format, ...)
• int fscanf(FILE stream, const char format, ...)
• int fgetc(FILE *stream)
• int fputc(int c, FILE *stream)
• char fgets(char s, int n, FILE *stream)
• int fputs(const char s, FILE stream)
• int getc(FILE *stream)
• int putc(int c, FILE *stream)
• int fseek(FILE *stream, long int offset, int whence)
• long int ftell(FILE *stream)
• void rewind(FILE *stream)