strtok
语法:
#include <string.h>
char *strtok( char *str1, const char *str2 );
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功能：函数返回字符串str1中紧接“标记”的部分的指针, 字符串str2是作为标记的分隔符。如果分隔标记没有找到，函数返回NULL。为了将字符串转换成标记，第一次调用str1 指向作为标记的分隔符。之后所以的调用str1 都应为NULL。
例如:
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 );
}
以上代码的运行结果是：
result is "now "
result is " is the time for all "
result is " good men to come to the "
result is " aid of their country"