scanf输入格式控制字符串

#include <stdio.h>

#define SIZE  20                              // Max characters in a word
void try_input(char *prompt, char *format);   // Input test function

int main(void){
  try_input("Enter as input: -2.35 15 25 ready2go/n",
              "%f %d %d %[abcdefghijklmnopqrstuvwxyz] %*1d %s%n" );

  try_input("/nEnter the same input again: ",
              "%4f %4d %d %*d %[abcdefghijklmnopqrstuvwxyz] %*1d %[^o]%n");

  try_input("/nEnter as input: -2.3A 15 25 ready2go/n",
              "%4f %4d %d %*d %[abcdefghijklmnopqrstuvwxyz] %*1d %[^o]%n");
  return 0;/*from www.j  a v  a2  s . c  om*/
}

void try_input(char* prompt, char *format){
  int value_count = 0;                  // Count of input values read
  float fp1 = 0.0f;                     // Floating-point value read
  int i = 0;                            // First integer read
  int j = 0;                            // Second integer read
  char word1[SIZE] = " ";               // First string read
  char word2[SIZE] = " ";               // Second string read
  int byte_count = 0;                   // Count of input bytes read
  printf(prompt);
  value_count = scanf(format, &fp1, &i , &j,
                    word1, sizeof(word1), word2, sizeof(word2), &byte_count);
  fflush(stdin);                        // Clear the input buffer
  printf("The input format string for scanf() is:/n     /"%s/"/n", format);
  printf("Count of bytes read = %d/n", byte_count);
  printf("Count of values read = %d/n", value_count);
  printf("fp1 = %f   i = %d   j = %d/n", fp1, i, j);
  printf("word1 = %s   word2 = %s/n", word1, word2);
}