[讨论]关于头文件写法的疑惑

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紫色＆飘蓝ぁ

电梯直达

1^#

发表于 2009-11-4 00:25:22 | 只看该作者回帖奖励

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#include<iostream.h>
和
#include<iostream>
using namespace std;
这两种写法我以前用都可以的可是最近不知道为什么我用前面的那中写法老是会出现以下的错误提示
d:\microsoft visual studio\vc98\include\streamb.h(90) : error C2027: use of undefined type 'ios'
d:\microsoft visual studio\vc98\include\streamb.h(67) : see declaration of 'ios'
d:\microsoft visual studio\vc98\include\streamb.h(90) : error C2061: syntax error : identifier 'seek_dir'
d:\microsoft visual studio\vc98\include\istream.h(64) : error C2504: 'ios' : base class undefined
d:\microsoft visual studio\vc98\include\istream.h(118) : error C2027: use of undefined type 'ios'
d:\microsoft visual studio\vc98\include\streamb.h(67) : see declaration of 'ios'
d:\microsoft visual studio\vc98\include\istream.h(118) : error C2061: syntax error : identifier 'seek_dir'
d:\microsoft visual studio\vc98\include\istream.h(118) : error C2535: 'class istream &__thiscall istream::seekg(long)' : member function already defined or declared
d:\microsoft visual studio\vc98\include\istream.h(117) : see declaration of 'seekg'
d:\microsoft visual studio\vc98\include\istream.h(140) : error C2664: 'class ios &(class ios &)' : cannot convert parameter 1 from 'class istream' to 'class ios &'
A reference that is not to 'const' cannot be bound to a non-lvalue
d:\microsoft visual studio\vc98\include\istream.h(155) : error C2065: 'lock' : undeclared identifier
d:\microsoft visual studio\vc98\include\istream.h(155) : error C2065: '

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