string的size和size()不同,刚发现的,来问问.

vfork 2005-12-22 09:10:23
查了MSDN,没找到关于string的size的解释,来问问兄弟们.

string str="I Love Linux!";

str.size(); //这个结果是13
str.size; //这个为什么是1
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thomaslw 2005-12-23
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还是使用stl的标准库比好.

unsigned int (__thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::*
str.size应该是个函数指针.
========================
可不可以解释一下Y呢.谢谢!
lonelyforest 2005-12-22
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str.size 是 str.size() 方法的函数地址, 值是未知的,
一般表示长度的变量可能是 int _size, 但是它 的属性是 private, 你无法访问的。 所以求长度建议用str.size(), 返回一个长度值。
useresu 2005-12-22
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我用vs 2005,
也编译不过
useresu 2005-12-22
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size是错误的写法
oyljerry 2005-12-22
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用size()求大小
lxb365 2005-12-22
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首先,str.size; 根本就是错误的写法,你得出1的值,也完全是机缘巧合,所以没有必要讨论为什么不一样。
sinall 2005-12-22
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vc的问题。
gcc你都没法编译。
wzjall 2005-12-22
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没用过 size.
pyrophile 2005-12-22
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不知道,没有用过.size
这是是string类里的变量么?看到呀
sankt 2005-12-22
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The size() function returns the number of elements in the current string.
piaochen_2002 2005-12-22
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unsigned int (__thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::*
str.size应该是个函数指针.
maojun1986 2005-12-22
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汗...这是什么掉用方法啊.......
因该错了吧....
herman~~ 2005-12-22
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str.size
是语法错误吧
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10:10:10","formatTime":"2005-12-22","userRoleHonorary":{"userName":null,"roleId":null,"roleType":null,"roleStatus":null,"honoraryId":null,"roleName":null,"honoraryName":null,"communityNickname":null,"communitySignature":null},"child":null,"communityNickname":null,"communityReplyNickname":null,"rewardInfo":null,"checkRedPacketVO":null,"noDiggCount":null},{"hit":null,"hitMsg":null,"content":"The size() function returns the number of elements in the current string.","topicTitle":null,"description":"The size() function returns the number of elements in the current string.","id":55494454,"contentResourceId":80256120,"bindContentResourceId":0,"communityId":164,"username":"sankt","userNickName":"sankt","userAvatar":"https:\u002F\u002Fprofile-avatar.csdnimg.cn\u002F1b079f4d40db4da5bdd5e0b932f88e7a_sankt.jpg!1","mdContent":null,"parentId":0,"replyName":"","replyNickName":"","bizNo":"bbs","ip":3683408160,"status":10,"childCount":0,"topStatus":0,"recommendStatus":0,"userLike":false,"diggCount":0,"childIds":"","createTime":"2005-12-22 09:42:04","updateTime":"2005-12-22 09:42:04","formatTime":"2005-12-22","userRoleHonorary":{"userName":null,"roleId":null,"roleType":null,"roleStatus":null,"honoraryId":null,"roleName":null,"honoraryName":null,"communityNickname":null,"communitySignature":null},"child":null,"communityNickname":null,"communityReplyNickname":null,"rewardInfo":null,"checkRedPacketVO":null,"noDiggCount":null},{"hit":null,"hitMsg":null,"content":"unsigned int (__thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::*\u003Cbr \u002F\u003E\nstr.size应该是个函数指针.","topicTitle":null,"description":"unsigned int (__thiscall std::basic_string\u003Cchar,struct std::char_traits\u003Cchar\u003E,class std::allocator\u003Cchar\u003E \u003E::* str.size应该是个函数指针.","id":55481221,"contentResourceId":80256120,"bindContentResourceId":0,"communityId":164,"username":"piaochen_2002","userNickName":"piaochen_2002","userAvatar":"https:\u002F\u002Fprofile-avatar.csdnimg.cn\u002Fdefault.jpg!1","mdContent":null,"parentId":0,"replyName":"","replyNickName":"","bizNo":"bbs","ip":1038836226,"status":10,"childCount":0,"topStatus":0,"recommendStatus":0,"userLike":false,"diggCount":0,"childIds":"","createTime":"2005-12-22 09:34:19","updateTime":"2005-12-22 09:34:19","formatTime":"2005-12-22","userRoleHonorary":{"userName":null,"roleId":null,"roleType":null,"roleStatus":null,"honoraryId":null,"roleName":null,"honoraryName":null,"communityNickname":null,"communitySignature":null},"child":null,"communityNickname":null,"communityReplyNickname":null,"rewardInfo":null,"checkRedPacketVO":null,"noDiggCount":null},{"hit":null,"hitMsg":null,"content":"汗...这是什么掉用方法啊.......\u003Cbr \u002F\u003E\n因该错了吧....","topicTitle":null,"description":"汗...这是什么掉用方法啊....... 因该错了吧....","id":55493016,"contentResourceId":80256120,"bindContentResourceId":0,"communityId":164,"username":"maojun1986","userNickName":"maojun1986","userAvatar":"https:\u002F\u002Fprofile-avatar.csdnimg.cn\u002F7b14ecc8ae5647e3b81357a13b92adc8_maojun1986.jpg!1","mdContent":null,"parentId":0,"replyName":"","replyNickName":"","bizNo":"bbs","ip":3722970454,"status":10,"childCount":0,"topStatus":0,"recommendStatus":0,"userLike":false,"diggCount":0,"childIds":"","createTime":"2005-12-22 07:05:01","updateTime":"2005-12-22 07:05:01","formatTime":"2005-12-22","userRoleHonorary":{"userName":null,"roleId":null,"roleType":null,"roleStatus":null,"honoraryId":null,"roleName":null,"honoraryName":null,"communityNickname":null,"communitySignature":null},"child":null,"communityNickname":null,"communityReplyNickname":null,"rewardInfo":null,"checkRedPacketVO":null,"noDiggCount":null},{"hit":null,"hitMsg":null,"content":"str.size\u003Cbr \u002F\u003E\n是语法错误吧\u003Cbr \u002F\u003E\n","topicTitle":null,"description":"str.size 是语法错误吧 ","id":55486325,"contentResourceId":80256120,"bindContentResourceId":0,"communityId":164,"username":"cyblueboy83","userNickName":"herman~~","userAvatar":"https:\u002F\u002Fprofile-avatar.csdnimg.cn\u002Fd28a43b0954e4eb4b85425607feed552_cyblueboy83.jpg!1","mdContent":null,"parentId":0,"replyName":"","replyNickName":"","bizNo":"bbs","ip":3683198201,"status":10,"childCount":0,"topStatus":0,"recommendStatus":0,"userLike":false,"diggCount":0,"childIds":"","createTime":"2005-12-22 01:14:29","updateTime":"2005-12-22 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\u003Cem\u003EString\u003C\u002Fem\u003E类:编码的由来 | basic_\u003Cem\u003Estring\u003C\u002Fem\u003E 模板类 | \u003Cem\u003Estring\u003C\u002Fem\u003E类的常用接口讲解 | 学会查文档","desc":"本章将介绍 \u003Cem\u003Estring\u003C\u002Fem\u003E 类,在 \u003Cem\u003Estring\u003C\u002Fem\u003E 讲解之前会补充一些知识点,比如 basic_\u003Cem\u003Estring\u003C\u002Fem\u003E 和字符编码等。\u003Cem\u003Estring\u003C\u002Fem\u003E 类的东西太多了,全部介绍一遍似乎不太现实,所以我们将介绍 \u003Cem\u003Estring\u003C\u002Fem\u003E 常用的接口函数。如果以后需要用到一些接口函数,要学会查文档,现查现用的技能。","createTime":"2022-04-28 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