使用tinyxml创建xml

Question

我有个问题。我需要创建以下xml：

<?xml version="1.0" encoding="utf-8"?>
<MyApp value="5" name="me">
</MyApp>

使用c++代码，我完成了以下操作：

#include <iostream>
#include <string>
#include "tinyxml.h" 
void main(){
    TiXmlDocument doc;
    TiXmlDeclaration * decl = new TiXmlDeclaration( "1.0", "utf-8", "");
    doc.LinkEndChild( decl );

    TiXmlElement * root;
    root = new TiXmlElement( "MyApp" );  
    root->SetAttribute("value","5");
    root->SetAttribute("name","me");
    doc.LinkEndChild( root );  

    doc.SaveFile( "madeByHand.xml" );
    return 0;
}

我使用g++、tinyxml.cpp、tinyxmlerror.cpp和tinyxmlparser.cpp编译它。当我想要查看我创建的xml时。我有一个错误:它说它写得不正确。我哪里错了？：)

Answer 1

以防任何人需要这样的XML文件结构：

<?xml version="1.0" ?>
<Hello>Opening a new salutation
   <Greeting value="5" name="me"></Greeting>
</Hello>

_

下面是这段代码：

_

TiXmlDocument doc;
TiXmlDeclaration* decl = new TiXmlDeclaration( "1.0", "", "" );
doc.LinkEndChild( decl );

TiXmlElement* element = new TiXmlElement( "Hello" );
doc.LinkEndChild( element );

TiXmlText* text = new TiXmlText( "Opening a new salutation" );
element->LinkEndChild( text );

TiXmlElement* element2 = new TiXmlElement( "Greeting" );
element2->SetAttribute("value","5");
element2->SetAttribute("name","me");
element->LinkEndChild( element2 );

TiXmlText* text2 = new TiXmlText( "" );
element2->LinkEndChild( text2 );

doc.SaveFile( "madeByHand2.xml" );

_

以及如何使用循环添加多个元素的选项(for / while)：

_

<?xml version="1.0" ?>
<Hello>Opening a new salutation
    <Greeting value="5" name="me"></Greeting>
    <Greeting value="5" name="me"></Greeting>
    <Greeting value="5" name="me"></Greeting>
</Hello>

_

下面是实现此操作的代码：

_

TiXmlDocument doc;
TiXmlDeclaration* decl = new TiXmlDeclaration( "1.0", "", "" );
doc.LinkEndChild( decl );

TiXmlElement* element = new TiXmlElement( "Hello" );
doc.LinkEndChild( element );

TiXmlText* text = new TiXmlText( "Opening a new salutation" );
element->LinkEndChild( text );


for(long i=0; i<3; i++)
{
TiXmlElement* element2 = new TiXmlElement( "Greeting" );
TiXmlText* text2 = new TiXmlText( "" );

element2->SetAttribute("value","5");
element2->SetAttribute("name","me");

element->LinkEndChild( element2 );
element2->LinkEndChild( text2 );
}

doc.SaveFile( "madeByHand2.xml" );

Answer 2

您正尝试将C++用作某种类型的脚本。您必须创建一个main()函数，其中放置了生产代码。

#include <iostream>
#include <string>
#include "tinyxml.h"

void main()
{
TiXmlDocument doc;
TiXmlDeclaration * decl = new TiXmlDeclaration( "1.0", "utf-8", "");
doc.LinkEndChild( decl );
TiXmlElement * root;
    root = new TiXmlElement( "MyApp" );  
        root->SetAttribute("value","5");
        root->SetAttribute("name","me");
        doc.LinkEndChild( root );  
doc.SaveFile( "madeByHand.xml" );
}

编译之后，当然，您必须从命令行启动应用程序。

Answer 3

必须将tinyxmlparser.cpp tinyxmlerror.cpp tinyxml.cpp tinyxml.h tinystr.cpp tinystr.h添加到项目中