Qstring str="FF"; bool ok;int dec=str.toInt(&ok,10); //dec=255 ; ok=rue int hex =str.toInt(&ok,16); //hex=255;ok=true; 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="3...
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。 cpp #include <QString> #include <QByteArray> unsigned char data[] = {0x68, 0x65, 0x6c, 0x6c, 0x6f}; // "hello" in UTF-8 QString str = QString::fromUtf8(reinter...
Qstring str="FF"; bool ok;int dec=str.toInt(&ok,10); //dec=255 ; ok=rue int hex =str.toInt(&ok,16); //hex=255;ok=true; 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="3...
QString str = "fdd"; QByteArray ba = str.toLatin1(); unsigned char * str1 = (unsigned char *)ba.data;
const char *p = qstr.toStdString().data(); 1 转换过来的是常量 把当前时间转化为QString…public QDateTime qdate = QDateTime.currentDateTime(); datetime = qdate.toString(“yyyy年MM月dd日ddddhh:mm:ss”); 1 2 如果不是QTime和QDate类比如说:通过TCP/IP接收到的char unsigned char 类等如何...
//int转string int a = 123456; string b; b = std::tostring(a); //string转int string c = "123456"; int d; d = atoi(c.c_str());//string转float 用 atof() 3,int与QString 代码语言:javascript 代码运行次数:0 复制Cloud Studio 代码运行 //int转QString int a = 123456; QString b...
QString str1 = QString::fromLocal8Bit(ch); qDebug() << str1; // "hello world !" QString str2(ch); qDebug() << str2; // "hello world !" 1 2 3 4 5 6 7 5. const char * 转 unsigned char * const char *ch = "hello world !"; ...
Qt中 int ,float ,double转换为QString 有两种⽅法 1.使⽤ QString::number();如:long a = 63;QString s = QString::number(a, 10); // s == "63"QString t = QString::number(a, 16).toUpper(); // t == "3F"(解释，变量a为int型或者float，double。10和16为进制) toUpper...
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(str); ...
Qt unsigned char *与QString之间的相互转换 //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 =...