@文心快码qt unsigned char 转 qstring 文心快码在Qt中,将unsigned char转换为QString通常涉及将字节数据视为某种编码的字符串。下面是一些常用的方法,并附上代码示例: 1. 使用QString::fromUtf8 如果unsigned char数组是UTF-8编码的,可以直接使用QString::fromUtf8进行转换。
QString str = "fdd"; QByteArray ba = str.toLatin1(); unsigned char * str1 = (unsigned char *)ba.data;
//unsiged char *转QString unsigned char *str = "fdd" ; char *str1 = (char *)str; QString str2 = QString(QLatin1String(str1)); //QString 转化成char * QString str = "fdd"; QByteArray ba = str.toLatin1(); unsigned char * str1 = (unsigned char *)ba.data;分类: Qt 好...
QString -> unsigned char* : QString str = "ABCD"; int length = str.length(); unsigned char* sequence = NULL;sequence =(unsigned char*)qstrdup(str.toAscii().constData()); delete[] sequence; - sequence length = 5 --> ['A'] ['B'] ['C'] ['D'] ['/0'] - sequence is now...
QString Qstr;std::stringstr =Qstr.toStdString();constchar* c = str.c_str(); 6、QByteArray转换为QString QByteArray buf ="123456"; QString str= QString(buf); 7、unsigned char转换为QString unsignedcharch[10] ="sssssssss"; QString str= QString().asprintf("%s", ch);...
使用Qt开发嵌入式时,常引用一些C语言的驱动,那就涉及到QString和char *之间的互相转换,方法如下,直接上代码: // char[]转QStringunsignedcharbuf[3]={0x2,0x56,0xff};QString str;for(inti=0;i<sizeof(buf)/sizeof(buf[0]);i++){str+=QString::number(buf[i]);}ui->textBrowser->append(str)...
qDebug() << str2; // "hello world !" 1 2 3 4 5 6 7 5. const char * 转 unsigned char * const char *ch = "hello world !"; unsigned char *ret = (unsigned char *)ch; 1 2 6. const unsigned char * 转 QString const unsigned char str[5] = {'t', 'e', 's', 't'}...
QString string;QHostAddress address(string); QString转int QString string;int m;m=string.toInt(); QString转unsigned char QString string;bool ok;unsigned char uch = string.toInt(&ok, 16); 二、String的转换 String转QString QString string;std::string str;string = QString::fromStdString(st...
3.常整形转换为Qstring形 long a =63; QString str=QString::number(a,16);//str="3f"; QString str=QString::number(a,16).toUpper();//str="3F"; Qstring转换char*问题! 方法一: QString qstr("hello,word"); const char * p = qstr.toLocal8Bit().data(); ...
qDebug()<<"totalBytes:"<<totalBytes; 1. 2. 3. 4. 5. 1.2 int【10进制】转QByteArray inti=2; QByteArrayres; res.resize(4); //小端存储,数据的低位在字节的高位 res[3]=(unsignedchar)(0x000000ff&i); res[2]=(unsignedchar)((0x0000ff00&i)>>8); ...