strtok()函数 – 梁笔记

strtok

语法:

? #include <string.h>

? char *strtok( char *str1, const char *str2 );

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