Question

如何给xml文档添加换行？

#import <msxml3.dll>
void Exit()
{
CoUninitialize();
}
int main()
{
CoInitialize(NULL); // 初始化COM环境

//atexit(Exit);

MSXML2::IXMLDOMDocumentPtr pDOMDoc;

pDOMDoc.CreateInstance(__uuidof(MSXML2::DOMDocument30)); // 创建XMLDOMDocument对象

MSXML2::IXMLDOMProcessingInstructionPtr pDOMPI;

pDOMPI=pDOMDoc->createProcessingInstruction("xml", "version=\"1.0\" encoding=\"UTF-8\""); // 创建XML声明

pDOMDoc->appendChild(pDOMPI); // 添加XML声明

MSXML2::IXMLDOMElementPtr pDOMRoot;

pDOMDoc->raw_createElement((_bstr_t)"China", &pDOMRoot); // 创建[根]节点

pDOMRoot->setAttribute("Area", "3600000"); // 设置[根]节点属性

pDOMDoc->appendChild(pDOMRoot); // 向Document中添加根节点

MSXML2::IXMLDOMElementPtr pDOMNode;

pDOMDoc->raw_createElement((_bstr_t)"City", &pDOMNode);

pDOMNode->Puttext("Chongqing"); // 为节点赋值

pDOMRoot->appendChild(pDOMNode); // 向[根]节点中添加子节点

pDOMDoc->raw_createElement((_bstr_t)"City", &pDOMNode);

pDOMNode->Puttext("Beijing");

pDOMRoot->appendChild(pDOMNode);

pDOMDoc->raw_createElement((_bstr_t)"City", &pDOMNode);

pDOMNode->Puttext("Beijing");

pDOMRoot->appendChild(pDOMNode);

pDOMDoc->raw_createElement((_bstr_t)"City", &pDOMNode);

pDOMNode->Puttext("Beijing");

pDOMRoot->appendChild(pDOMNode);

pDOMDoc->save("Test.xml"); // 储存XML Document

return 0;
}

输出后让它变成

<?xml version="1.0" encoding="UTF-8"?>
<China Area="3600000">
<City>Chongqing</City>
<City>Beijing</City>
<City>Beijing</City>
<City>Beijing</City>
</China>

Answer 1

& lt; br/ & gt; 去掉空格

Answer 2

<br>是换行代码， ；空格键，<pre></pre>也是啊

追问

我要写到txt文件中去，现在的问题是写进去后它整个就是一行！《br、pre等的只是用于html中的

追答

哦，以为你要写代码！！你要写文本文件？我不太明白