C语言数据结构实现字符串分割的实例

#include<stdio.h> 
 
/* 根据空格分隔字符串 */ 
int partition(char *src, char *par, int pos) 
{ 
  int i,j; 
  i = pos; 
 
  //取到第一个非空格字符 
  while(src[i] == ' ') 
  { 
    ++i; 
  } 
 
  if(src[i] != '\0') 
  { 
    j = 0; 
    while((src[i] != '\0') && (src[i] != ' ')) 
    { 
      par[j] = src[i]; 
      ++i; 
      ++j; 
    } 
    par[j]='\0'; 
 
    return i; 
  } 
  else 
  { 
    return -1; 
  } 
} 
 
void main() 
{ 
  char string[50]; 
  char partition_string[20]; 
  int position; 
  int k; 
 
  printf("Please input strng(length<=50): "); 
  gets(string); 
 
  position=0; 
  printf("\nPartition result: \n"); 
  k=0; 
  while((position = partition(string,partition_string,position)) != -1) 
  { 
    ++k; 
    printf("Partition %d : %s\n", k, partition_string); 
  } 
}