Javascript 这是一个怎样的问题；Uncaught NotFoundError:尝试在不存在节点的上下文中引用该节点&引用；错误？ TLDR：_Javascript_Dom_Textnode

Javascript 这是一个怎样的问题；Uncaught NotFoundError:尝试在不存在节点的上下文中引用该节点&引用；错误？ TLDR：

javascript dom

Javascript 这是一个怎样的问题；Uncaught NotFoundError:尝试在不存在节点的上下文中引用该节点&引用；错误？ TLDR：,javascript,dom,textnode,Javascript,Dom,Textnode,见：举个完整的例子我不知道为什么取消注释下面注释掉的行会产生错误： “Uncaught NotFoundError:试图在不存在节点的上下文中引用该节点。” （函数（）{ //==================================================== //全球的 // // // var div=document.createElement（'div'）； var bd=document.body； var range=document.createRa

见：举个完整的例子

我不知道为什么取消注释下面注释掉的行会产生错误： “Uncaught NotFoundError:试图在不存在节点的上下文中引用该节点。”

（函数（）{
//====================================================
//全球的
//    
//
//
var div=document.createElement（'div'）；
var bd=document.body；
var range=document.createRange（）；
div.id='swagyo'；
//====================================================
//周围的
//获取一个范围对象并将其包围（使用此）
//
//
//
函数surroundTxt（rangeObj，withThis）{
rangeObj.周边内容（带此）；
}
//====================================================
//漂亮的文本
//获取一个字符串，在正则表达式处拆分它，预加keepthis，追加addThis
//返回新创建的子字符串的数组。
//
//
函数prettyfyText（str、regExp、addThis、keepthis）{
var结果；
如果（str.search（regExp）！=-1）{
var splitted=str.split（regExp），
arr=[]；
如果（保留此项）{
对于（变量i=0；i


本质上，我试图做的是将插入dom中的文本作为文本节点，并用格式化版本替换它
html的一个片段如下所示：
<html>
<body>
    <div id="info">
        <pre>
    /Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -DF_CPU=16000000L -DARDUINO=100 -I/Users/worker_bee/Documents/Arduino/ardu -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/cores/arduino -I/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/avr/include/avr -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/variants/standard -mmcu=atmega328p applet/ardu.cpp -o applet/ardu.o
        </pre>
    </div>applet/ardu.cpp:2: error: expected unqualified-id before '/' token applet/ardu.cpp: In function 'void setup()': applet/ardu.cpp:14: error: 'outputPin' was not declared in this scope applet/ardu.cpp: In function 'void printStuff()': applet/ardu.cpp:36: error: 'outputPin' was not declared in this scope applet/ardu.cpp:37: error: 'writeStuff' was not declared in this scope applet/ardu.cpp: In function 'void writeStuff()': applet/ardu.cpp:50: error: 'outputPin' was not declared in this scope make: *** [applet/ardu.o] Error 1 
</body>
</html>


/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin/avr-g++-c-g-Os-w-fno异常-f函数部分-fdata部分-DF_CPU=16000000L-DARDUINO=100-I/Users/worker_bee/Documents/Arduino/ardu-I/Applications/Arduino.app/Contents/Resources/Java/hardware/Arduino/cores/Arduino-I/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/avr/include/avr-I/Applications/Arduino.app/Contents/Resources/Java/hardware/Arduino/variants/standard-mmcu=atmega328p applet/ardu.cpp-o applet/ardu.o
applet/ardu.cpp:2:错误：在函数“void setup（）”中的“/”标记applet/ardu.cpp:之前应为非限定id:applet/ardu.cpp:14:错误：未在此作用域中声明“outputPin”applet/ardu.cpp:在函数“void printsuff（）中）“：applet/ardu.cpp:36:错误：“outputPin”未在此作用域中声明applet/ardu.cpp:37:错误：“writeStuff”未在此作用域中声明applet/ardu.cpp:函数“void writeStuff（）”：applet/ardu.cpp:50:错误：“outputPin”未在此作用域中声明：**[applet/ardu.o]错误1

为什么要取消注释
<html>
<body>
    <div id="info">
        <pre>
    /Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -DF_CPU=16000000L -DARDUINO=100 -I/Users/worker_bee/Documents/Arduino/ardu -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/cores/arduino -I/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/avr/include/avr -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/variants/standard -mmcu=atmega328p applet/ardu.cpp -o applet/ardu.o
        </pre>
    </div>applet/ardu.cpp:2: error: expected unqualified-id before '/' token applet/ardu.cpp: In function 'void setup()': applet/ardu.cpp:14: error: 'outputPin' was not declared in this scope applet/ardu.cpp: In function 'void printStuff()': applet/ardu.cpp:36: error: 'outputPin' was not declared in this scope applet/ardu.cpp:37: error: 'writeStuff' was not declared in this scope applet/ardu.cpp: In function 'void writeStuff()': applet/ardu.cpp:50: error: 'outputPin' was not declared in this scope make: *** [applet/ardu.o] Error 1 
</body>
</html>

newrange = document.createRange()
newrange.setStart(resultArr[i], 0);
newrange.setEnd(resultArr[i], resultArr[i].length);
newrange.surroundContents()