{"id":134,"date":"2010-09-10T17:07:32","date_gmt":"2010-09-10T17:07:32","guid":{"rendered":"02522a2b2726fb0a03bb19f2d8d9524d"},"modified":"2010-09-10T17:07:32","modified_gmt":"2010-09-10T17:07:32","slug":"","status":"publish","type":"post","link":"https:\/\/www.xiaobo.li\/notes\/archives\/134","title":{"rendered":"C++\u64cd\u4f5c\u7b26\u53ca\u4f18\u5148\u7ea7"},"content":{"rendered":"

C++\u64cd\u4f5c\u7b26\u7684\u4f18\u5148\u7ea7<\/a>
\n<\/h1>\n
 <\/div>\n
\n

 <\/p>\n

\n
\n
<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

C++ \u64cd\u4f5c\u7b26\u7684\u4f18\u5148\u7ea7<\/p>\n<\/td>\n<\/tr>\n

\n

\u64cd\u4f5c\u7b26\u53ca\u5176\u7ed3\u5408\u6027<\/p>\n<\/td>\n

\n

\u529f\u80fd<\/p>\n<\/td>\n

\n

\u7528\u6cd5<\/p>\n<\/td>\n<\/tr>\n

L
L
L<\/td>\n		::
::
::<\/td>\n		\u5168\u5c40\u4f5c\u7528\u57df 
\u7c7b\u4f5c\u7528\u57df 
\u540d\u5b57\u7a7a\u95f4\u4f5c\u7528\u57df<\/td>\n		::name
class::name
namespace::name<\/td>\n<\/tr>\n
L
L
L
L
L
 <\/td>\n		.
->
[]
()
()
 <\/td>\n		\u6210\u5458\u9009\u62e9 
\u6210\u5458\u9009\u62e9 
\u4e0b\u6807 
\u51fd\u6570\u8c03\u7528 
\u7c7b\u578b\u6784\u9020 
 <\/td>\n		object.member
pointer->member
variable[expr]
name(expr_list)
type(expr_list)<\/td>\n<\/tr>\n
R
R
R
R
R
 <\/td>\n		++
--
typeid
typeid
\u663e\u793a\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362 
 <\/td>\n		\u540e\u81ea\u589e\u64cd\u4f5c 
\u540e\u81ea\u51cf\u64cd\u4f5c 
\u7c7b\u578bID
\u8fd0\u884c\u65f6\u7c7b\u578bID
\u7c7b\u578b\u8f6c\u6362 
 <\/td>\n		lvalue++
lvalue--
typeid(type)
typeid(expr)
cast_name<type>(expr)<\/td>\n<\/tr>\n
R
R
R
R
R
R
R
R
R
R
R
R
R
R<\/td>\n		sizeof
sizeof
++
--
~
!
-
+
*
&
()
new
delete
delete[]<\/td>\n		\u5bf9\u8c61\u7684\u5927\u5c0f 
\u7c7b\u578b\u7684\u5927\u5c0f 
\u524d\u81ea\u589e\u64cd\u4f5c 
\u524d\u81ea\u51cf\u64cd\u4f5c 
\u4f4d\u6c42\u53cd 
\u903b\u8f91\u975e 
\u4e00\u5143\u8d1f\u53f7 
\u4e00\u5143\u6b63\u53f7 
\u89e3\u5f15\u7528 
\u53d6\u5730\u5740 
\u7c7b\u578b\u8f6c\u6362 
\u521b\u5efa\u5bf9\u8c61 
\u91ca\u653e\u5bf9\u8c61 
\u91ca\u653e\u6570\u7ec4<\/td>\n		sizeof expr
sizeof(type)
++lvalue
--lvalue
~expr
!expr
-expr
+expr
*expr
&expr
(type)expr
new type
delete expr
delete []expr<\/td>\n<\/tr>\n
L
L<\/td>\n		->*
.*<\/td>\n		\u6307\u5411\u6210\u5458\u64cd\u4f5c\u7684\u6307\u9488 
\u6307\u5411\u6210\u5458\u64cd\u4f5c\u7684\u6307\u9488<\/td>\n		ptr->*ptr_to_member
obj.*ptr_to_member<\/td>\n<\/tr>\n
L
L
L<\/td>\n		*
\/
%<\/td>\n		\u4e58\u6cd5 
\u9664\u6cd5 
\u6c42\u6a21\uff08\u6c42\u4f59\uff09<\/td>\n		expr * expr
expr \/ expr
expr % expr<\/td>\n<\/tr>\n
L
L<\/td>\n		+
-<\/td>\n		\u52a0\u6cd5 
\u51cf\u6cd5<\/td>\n		expr + expr
expr - expr<\/td>\n<\/tr>\n
L
L<\/td>\n		<< 
>><\/td>\n		\u4f4d\u5de6\u79fb 
\u4f4d\u53f3\u79fb<\/td>\n		expr << expr
expr >> expr<\/td>\n<\/tr>\n
L
L
L
L<\/td>\n		< 
<=
> 
>=<\/td>\n		\u5c0f\u4e8e 
\u5c0f\u4e8e\u6216\u7b49\u4e8e 
\u5927\u4e8e 
\u5927\u4e8e\u6216\u7b49\u4e8e<\/td>\n		expr < expr
expr <= expr
expr > expr
expr >= expr<\/td>\n<\/tr>\n
L
R<\/td>\n		==
!=<\/td>\n		\u76f8\u7b49 
\u4e0d\u7b49<\/td>\n		Expr == expr
Expr != expr<\/td>\n<\/tr>\n
R<\/td>\n&<\/td>\n\u4f4d\u4e0e<\/td>\nExpr & expr<\/td>\n<\/tr>\n
R<\/td>\n^<\/td>\n\u4f4d\u5f02\u6216<\/td>\nExpr ^ expr<\/td>\n<\/tr>\n
R<\/td>\n|<\/td>\n\u4f4d\u6216<\/td>\nExpr | expr<\/td>\n<\/tr>\n
R<\/td>\n&&<\/td>\n\u903b\u8f91\u4e0e<\/td>\nExpr && expr<\/td>\n<\/tr>\n
R<\/td>\n||<\/td>\n\u903b\u8f91\u6216<\/td>\nExpr || expr<\/td>\n<\/tr>\n
R<\/td>\n?:<\/td>\n\u6761\u4ef6\u64cd\u4f5c<\/td>\nExpr ? expr:expr<\/td>\n<\/tr>\n
R
R
R
R
R<\/td>\n		=
*=,\/=,%=
+=,-=
<<=,>>=
&=,|=,^=<\/td>\n		\u8d4b\u503c\u64cd\u4f5c 
\u590d\u5408\u8d4b\u503c\u64cd\u4f5c  <\/p>\n

 <\/td>\n

Lvalue= expr
Lvalue+= expr
……  <\/p>\n

 <\/td>\n<\/tr>\n

R<\/td>\nthrow<\/td>\n\u629b\u51fa\u5f02\u5e38<\/td>\nThrow expr<\/td>\n<\/tr>\n
L<\/td>\n,<\/td>\n\u9017\u53f7<\/td>\nExpr, expr<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 <\/div>\n<\/div>\n<\/div>\n<\/div>\n

 <\/p>\n

\n
\u8bb0\u5fc6\u65b9\u6cd5\uff1a<\/div>\n
--\u6458\u81ea\u300aC\u8bed\u8a00\u7a0b\u5e8f\u8bbe\u8ba1\u5b9e\u7528\u95ee\u7b54\u300b      
    \u95ee\u9898\uff1a\u5982\u4f55\u8bb0\u4f4f\u8fd0\u7b97\u7b26\u768415\u79cd\u4f18\u5148\u7ea7\u548c\u7ed3\u5408\u6027\uff1f   
    \u89e3\u7b54\uff1aC\u8bed\u8a00\u4e2d\u8fd0\u7b97\u7b26\u79cd\u7c7b\u6bd4\u8f83\u7e41\u591a\uff0c\u4f18\u5148\u7ea7\u670915\u79cd\uff0c\u7ed3\u5408\u6027\u6709\u4e24\u79cd\u3002   
    \u5982\u4f55\u8bb0\u5fc6\u4e24\u79cd\u7ed3\u5408\u6027\u548c15\u79cd\u4f18\u5148\u7ea7\uff1f\u4e0b\u9762\u8bb2\u8ff0\u4e00\u79cd\u8bb0\u5fc6\u65b9\u6cd5\u3002   
    \u7ed3\u5408\u6027\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u81ea\u5de6\u81f3\u53f3\uff0c\u53e6\u4e00\u79cd\u662f\u81ea\u53f3\u81f3\u5de6\uff0c\u5927\u90e8\u5206\u8fd0\u7b97\u7b26\u7684\u7ed3\u5408\u6027\u662f\u81ea\u5de6\u81f3\u53f3\uff0c\u53ea\u6709\u5355\u76ee\u8fd0\u7b97\u7b26\u3001\u4e09\u76ee\u8fd0\u7b97\u7b26\u7684\u8d4b\u503c\u8fd0\u7b97\u7b26\u7684\u7ed3\u5408\u6027\u81ea\u53f3\u81f3\u5de6\u3002   
    \u4f18\u5148\u7ea7\u670915\u79cd\u3002\u8bb0\u5fc6\u65b9\u6cd5\u5982\u4e0b\uff1a   
    \u8bb0\u4f4f\u4e00\u4e2a\u6700\u9ad8\u7684\uff1a\u6784\u9020\u7c7b\u578b\u7684\u5143\u7d20\u6216\u6210\u5458\u4ee5\u53ca\u5c0f\u62ec\u53f7\u3002   
    \u8bb0\u4f4f\u4e00\u4e2a\u6700\u4f4e\u7684\uff1a\u9017\u53f7\u8fd0\u7b97\u7b26\u3002   
    \u5269\u4f59\u7684\u662f\u4e00\u3001\u4e8c\u3001\u4e09\u3001\u8d4b\u503c\u3002   
    \u610f\u601d\u662f\u5355\u76ee\u3001\u53cc\u76ee\u3001\u4e09\u76ee\u548c\u8d4b\u503c\u8fd0\u7b97\u7b26\u3002   
    \u5728\u8bf8\u591a\u8fd0\u7b97\u7b26\u4e2d\uff0c\u53c8\u5206\u4e3a\uff1a   
    \u7b97\u672f\u3001\u5173\u7cfb\u3001\u903b\u8f91\u3002   
    \u4e24\u79cd\u4f4d\u64cd\u4f5c\u8fd0\u7b97\u7b26\u4e2d\uff0c\u79fb\u4f4d\u8fd0\u7b97\u7b26\u5728\u7b97\u672f\u8fd0\u7b97\u7b26\u540e\u8fb9\uff0c\u903b\u8f91\u4f4d\u8fd0\u7b97\u7b26\u5728\u903b\u8f91\u8fd0\u7b97\u7b26\u7684\u524d\u9762\u3002\u518d\u7ec6\u5206\u5982\u4e0b\uff1a   
    \u7b97\u672f\u8fd0\u7b97\u7b26\u5206     *\uff0c\/\uff0c%\u9ad8\u4e8e+\uff0c-\u3002   
    \u5173\u7cfb\u8fd0\u7b97\u7b26\u4e2d\uff0c\u3009\uff0c\u3009=\uff0c<\uff0c<=\u9ad8\u4e8e==\uff0c\uff01=\u3002   
    \u903b\u8f91\u8fd0\u7b97\u7b26\u4e2d\uff0c\u9664\u4e86\u903b\u8f91\u6c42\u53cd\uff08\uff01\uff09\u662f\u5355\u76ee\u5916\uff0c\u903b\u8f91\u4e0e\uff08&&\uff09\u9ad8\u4e8e\u903b\u8f91\u6216\uff08||\uff09\u3002   
    \u903b\u8f91\u4f4d\u8fd0\u7b97\u7b26\u4e2d\uff0c\u9664\u4e86\u903b\u8f91\u6309\u4f4d\u6c42\u53cd\uff08~\uff09\u5916\uff0c\u6309\u4f4d\u4e0e\uff08&)\u9ad8\u4e8e\u6309\u4f4d\u534a\u52a0\uff08^)\uff0c\u9ad8\u4e8e\u6309\u4f4d\u6216\uff08|\uff09\u3002   
    \u8fd9\u6837\u5c31\u5c0615\u79cd\u4f18\u5148\u7ea7\u90fd\u8bb0\u4f4f\u4e86\uff0c\u518d\u5c06\u8bb0\u5fc6\u65b9\u6cd5\u603b\u7ed3\u5982\u4e0b\uff1a   
    \u53bb\u6389\u4e00\u4e2a\u6700\u9ad8\u7684\uff0c\u53bb\u6389\u4e00\u4e2a\u6700\u4f4e\u7684\uff0c\u5269\u4e0b\u7684\u662f\u4e00\u3001\u4e8c\u3001\u4e09\u3001\u8d4b\u503c\u3002\u53cc\u76ee\u8fd0\u7b97\u7b26\u4e2d\uff0c\u987a\u5e8f\u4e3a\u7b97\u672f\u3001\u5173\u7cfb\u548c\u903b\u8f91\uff0c\u79fb\u4f4d\u548c\u903b\u8f91\u4f4d\u63d2\u5165\u5176\u4e2d\u3002<\/div>\n<\/div>\n