substring

From , 4 Years ago, written in C, viewed 49 times.

int StrSub ( char *t, char *s, int i, int len )
/* 用t 返回串s 中第个i 字符开始的长度为len 的子串1≤i≤串长*/
{
        int slen;
        slen=StrLength ( s );
        if ( i<1 || i>slen || len<0 || len>slen-i+1 )
                { printf ( ＂参数不对＂ ); return 0; }
        for ( j=0; j<len; j++ )
                t[j]=s[i+j-1];
        t[j]=’\0’;
        return 1;
}
 

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substring

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