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1. Create
Create() ÊÇÒ»¸öÁ´±í»ù´¡£¬Ö»Óн¨Á¢ºÃÁ´±í²ÅÄܶÔËü½øÐÐÏàÓ¦µÄ²éÕÒ£¬É¾³ý µÈ¡£
»ù±¾Ëã·¨£º
1.³õʼ»¯
head=NULL;
ls=new test£»
cin>>ls->num;
Í·½áµãÖ¸ÏòNULL£¬ ´´½¨Ò»¸ö½Úµã£¬ÊäÈënum¡£
le £ºÕâ¸öÖ¸ÕëÓÃÓڼǼ×îºóÒ»¸öÔÚÁ´±íÉϵĽڵ㣬·Ç³£useful.
2.½øÈëÑ»·£¬Ìõ¼þÊÇnum!=0.
1) ÅжÏhead==NULL,
Èç¹ûÎªÕæ£¬±íÃ÷Á´±íΪ¿Õ£¬
Ôò½«½ÚµãÁ¬½Óµ½headÉÏ¡£
·ñÔò½«½ÚµãÁ¬µ½×îºóÒ»¸ö½ÚµãÉÏ¡£
2) ΪºóÃæµÄÑ»·×ö×¼±¸
leÇ°ÒÆ:le=ls;
ls ¿ª±Ùнڵ㣬¸³Öµ: ls=new test; cin>>ls->num.
3.ÊÕβ
ÔÚ֮ǰ¶à¿ª±Ù³öÒ»¸ö½Úµã£¬Òª½«Æäɾ³ý£¬ÁíÍâ¾ÍÊÇleÊÇÖ¸Ïò×îºóÒ»¸ö½ÚµãµÄ
£¬ËùÒÔ½«le->next=NULL.
£¨´ËËã·¨»¹ÓиĽøµÄµØ·½£¬ÄǾÍÊÇ¿ÉÒÔÏÈÅжÏnumÊÇ·ñΪ0 ÔÚ¾ö¶¨ÊÇ·ñ¿ª±Ù£©
struct test
{
int num;
test * next;
};
test * head;
test * create()
{
head=NULL;
test * ls,le;
ls=new test;
cin>>ls->num;
le=ls;
while(ls->num!=0)
{
if(head==NULL)
{
head=ls;
}
else{
le->next=ls;
}
le=ls;
ls=new test;
cin>>ls->num;
}
le->next=NULL;
delete ls;
return head;
}
2. Delete
Delete ÊÇÔÚ¸ø¶¨Ò»¸öÁ´±íµÄÍ·½áµãµÄÖ¸ÕëºÍҪɾ³ýµÄÒ»¸öÊý£¬½ø¶ø¶ÔÆäɾ³ý¡£
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2.Èç¹ûɾ³ýµÄΪÊ׽ڵ㣬ÔòÒª½«´Î½ÚµãµÄµØÖ··µ»Ø¸øhead
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1.const »ù´¡
constÓÐÁ½ÖÖÐÎʽ:
a) const Type var;
È磺int a =10;const int * var=&a; ÄÇôvar¾ÍÊdz£Á¿Ö¸Õ룬±íÃ÷ÊÇÖ¸Ïò³£Á¿µÄÖ¸Õ룬Ҳ¾ÍÊÇ˵aµÄÖµ²»Äܸı䡣
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