C语言之分割字符串

The strtok() function returns a pointer to the next “token” in str1, where str2 contains the delimiters that determine the token. strtok() returns NULL if no token is found. In order to convert a string to tokens, the first call to strtok() should have str1 point to the string to be tokenized. All calls after this should have str1 beNULL.

For example:

char str[] = "now # is the time for all # good men to come to the # aid of their country";   char delims[] = "#";   char *result = NULL;   result = strtok( str, delims );   while( result != NULL ) {       printf( "result is \"%s\"\n", result );       result = strtok( NULL, delims );   }            

The above code will display the following output:

   result is "now "   result is " is the time for all "   result is " good men to come to the "   result is " aid of their country"

这个函数跟编译器中的词法分析很向，在以后的文本处理中，会解决很多问题。看来我有必要系统的学习下C的库函数，而不仅仅是死扎在语法和一些算法技巧上面。这样在平常的工作中才能事半功倍。
使用这个函数，形如下面得配置文件就非常容易解析：
id1 value1 value2 value3
id2 value1 value2 value3
…