streamwriter用法_getmodulefilename_writeprivateprofilestring(2)

QTextStream writeStream(&writeFile);

//查找每一行是否包含section

while (!readStream.atEnd())

{

QString line(readStream.readLine());

if (line.indexOf(strSection) != 0)//该行不包含section，直接写入流

{

writeStream<<line<<"/n";

}

else

{

flagFindSection = true;//查到section

ret = true;

//key是null，则跳过该section,写入其余section

if (strKeyName == NULL)

{

do //跳过该section

{

line = QString(readStream.readLine());

} while (line.indexOf("[") != 0 && !readStream.atEnd());

if(readStream.atEnd())

{

break;

}

else//写入其余section

{

writeStream<<line<<"/n";

while(!readStream.atEnd())

{

writeStream<<readStream.readLine()<<"/n";

}

break;

}

}

writeStream<<line<<"/n";//section写入流

line = QString(readStream.readLine());

while(line.indexOf(strKey) != 0 && line.indexOf("[") != 0 && !readStream.atEnd())

{

writeStream<<line<<"/n";

line = QString(readStream.readLine());

}

if(readStream.atEnd())//文件末尾，若value!=null则直接加上key

{

//直接加上

if(strValue != NULL)

{

writeStream<<strKey<<strValue<<"/n";

}

}

else if(line.indexOf("[") == 0)//查到下一个section，若value!=null则在下一个section前直接加上key

{

if(strValue != NULL)

{

writeStream<<strKey<<strValue<<"/n";

}

writeStream<<line<<"/n";

while(!readStream.atEnd())//剩余行写入流中

{

writeStream<<readStream.readLine()<<"/n";

}

break;

}

else if(line.indexOf(strKeyName) == 0)//查到key，若value!=null则修改value

{

if(strValue != NULL)

{

line = line.mid(0, line.indexOf("=") + 1) + strValue;

本文来自电脑杂谈，转载请注明本文网址：
http://www.pc-fly.com/a/jisuanjixue/article-27851-2.html