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创建元素 - XmlCreateElement

函数简介

创建新的XML元素。

接口名称

XmlCreateElement

DLL调用

c
int64_t XmlCreateElement(int64_t doc, const char* name, int32_t* err);

参数说明

参数名类型说明
doc长整数型XML文档句柄。
name字符串元素名称。
err整数型错误码输出参数,可为NULL。

示例

SDK 调用

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int64_t doc = ola.XmlCreateDocument();
if (doc != 0) {
    int32_t elemErr = 0;
    int64_t root = ola.XmlCreateElement(doc, "root", &elemErr);
    int32_t insErr = 0;
    ola.XmlInsertRootElement(doc, root, &insErr);
    int32_t strErr = 0;
    std::string xmlOut = ola.XmlToString(doc, 0, &strErr);
    ola.XmlFree(doc);
}
csharp
using OLAPlug;

var ola = new OLAPlugServer();
long doc = ola.XmlCreateDocument();
if (doc != 0)
{
    int elemErr, insErr, strErr;
    long root = ola.XmlCreateElement(doc, "root", out elemErr);
    ola.XmlInsertRootElement(doc, root, out insErr);
    string xmlOut = ola.XmlToString(doc, 0, out strErr);
    ola.XmlFree(doc);
}
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
doc = ola.XmlCreateDocument()
if doc != 0:
    root, elem_err = ola.XmlCreateElement(doc, "root")
    ola.XmlInsertRootElement(doc, root)
    xml_out, str_err = ola.XmlToString(doc, 0)
    ola.XmlFree(doc)
java
import com.olaplug.OLAPlugServer;
import com.sun.jna.ptr.IntByReference;

OLAPlugServer ola = new OLAPlugServer();
long doc = ola.XmlCreateDocument();
if (doc != 0) {
    ola.XmlFree(doc);
}
cpp
var ola = com("OlaPlug.OlaSoft")
var doc = ola.XmlCreateDocument()
if(doc) {
    var root = ola.XmlCreateElement(doc, "root", 0)
    ola.XmlInsertRootElement(doc, root, 0)
    ola.XmlFree(doc)
}
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
doc = ola.XmlCreateDocument()
If doc <> 0 Then
    root = ola.XmlCreateElement(doc, "root", 0)
    ola.XmlInsertRootElement(doc, root, 0)
    ola.XmlFree(doc)
End If
text
.局部变量 ola, OLAPlug
ola.创建 ()
doc = ola.XmlCreateDocument ()
.如果真 (doc ≠ 0)
    root = ola.XmlCreateElement (doc, "root", 0)
    ola.XmlInsertRootElement (doc, root, 0)
    ola.XmlFree (doc)
.如果真结束
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var doc = ola.XmlCreateDocument();
if(doc){
    var root = ola.XmlCreateElement(doc, "root", 0);
    ola.XmlInsertRootElement(doc, root, 0);
    ola.XmlFree(doc);
}
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
长整数 doc = ola.XmlCreateDocument()
如果真 (doc ≠ 0)
{
    长整数 root = ola.XmlCreateElement(doc, "root", 0)
    ola.XmlInsertRootElement(doc, root, 0)
    ola.XmlFree(doc)
}
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int64_t doc = ola.XmlCreateDocument();
if (doc != 0) {
    int32_t elemErr = 0;
    int64_t root = ola.XmlCreateElement(doc, "root", &elemErr);
    ola.XmlInsertRootElement(doc, root, &elemErr);
    ola.XmlFree(doc);
}

原生 DLL 调用

cpp
long instance = CreateCOLAPlugInterFace();
long doc = XmlCreateDocument(instance);
if (doc != 0) {
    int err = 0;
    long root = XmlCreateElement(instance, doc, "root", &err);
    XmlInsertRootElement(instance, doc, root, &err);
    XmlFree(instance, doc);
}
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateCOLAPlugInterFace();

long instance = CreateCOLAPlugInterFace();
long doc = XmlCreateDocument(instance);
if (doc != 0) {
    int err = 0;
    long root = XmlCreateElement(instance, doc, "root", err);
    XmlInsertRootElement(instance, doc, root, err);
    XmlFree(instance, doc);
}
python
from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
instance = ola.CreateCOLAPlugInterFace()
doc = ola.XmlCreateDocument(instance)
if doc:
    err = c_int(0)
    root = ola.XmlCreateElement(instance, doc, b"root", err)
    ola.XmlInsertRootElement(instance, doc, root, err)
    ola.XmlFree(instance, doc)

返回值

返回值说明
非 0返回 元素句柄。
0失败。

注意事项

项目说明
创建的元素需要添加到文档树中才能生效创建的元素需要添加到文档树中才能生效。
元素名称不能为空元素名称不能为空。
元素句柄在文档释放后失效元素句柄在文档释放后失效。