/转\（斜杠转反斜杠） 使用QDir::toNativeSeparators接口 示例： QString path = "C:/temp/test.txt...
uint8_t转QString //uint8_t 转为str QString uint82qstring(uint8_t *udata,int length){ QString code_str; for (int i = 0; i < length;i++) { //分离16进制数的"十位"和“个位” char s1 = char(udata[i] >> 4); char s2 = char(udata[i] & 0xf); //将分离得到的数字转换...
struct FrameBlock { int64_t timestamp; uint32_t length; std::vector<char> dataVector; }; Pack 文件读取 int main() { std::ifstream file("d:/test.pack", std::ios::binary); if (!file) { std::cerr << "打开失败\n"; return 1; } while (file) { // 读取时间戳 int64_t time...
uint32_t sign; if (f < 0) { sign = 1; f = -f; } else { sign = 0; } p = (((uint32_t)f)&0x7fff)<<16) | (sign<<31); // Whole part and sign. p |= (uint32_t)(((f - (int)f) * 65536.0f))&0xffff; // Fraction. return p; } float ntohf(uint32_t p) {...
QByteArray byte3("ca\0r\0t", 4); qDebug()<<byte3.size(); // Returns 4. qDebug()<<byte3.constData(); // Returns "ca\0r" with terminating \0. for(int i=0; i<byte3.size();i++) { qDebug()<<byte3.at(i); } const char cart[] = {'c', 'a', '\0', 'r', '...
可以使用位运算符将四个uint8_t类型的数组合成一个uint32_t类型的数,然后左移 21 位并取高位。具体代码如下: #include<iostream> #include<cstdint> intmain(){ uint8_ta=0x12; uint8_tb=0x34; uint8_tc=0x56; uint8_td=0x78; uint32_tcombined=((uint32_t)a<<24)|((uint32_t)b<<16)|((...
unsigned int text_id = 0;void keyboardEventOccurred (const pcl::visualization::KeyboardEvent &event, void* viewer_void){ pcl::visualization::PCLVisualizer *viewer = static_cast<pcl::visualization::PCLVisualizer *> (viewer_void); if (event.getKeySym () == "r" && event.keyDown ()) { ...
voidusart_init(uint32_tbound); voiduser_shell_irq(void); intmain(void) { led_init(); usart_init(115200); printf("ok "); while(1) { if(cmd_flag) { //匹配指令 if(strcmp(cmd_buf,"ledon")==0) { printf("ledon"); }
qint8 quint8 qint16 quint16 qint32 quint32 qint64 quint64 qreal 常用接口 //求绝对值,T是泛型,以下都是 T qAbs(const T &t) 1. 2. //最大值和最小值,会把最大或最小的返回出来 T &qMax(const T &value1, const T &value2)
uint32_t i, len; //去掉无用符号 SendTextEditStr = SendTextEditStr.replace(' ',""); SendTextEditStr = SendTextEditStr.replace(',',""); SendTextEditStr = SendTextEditStr.replace('\r',""); SendTextEditStr = SendTextEditStr.replace('\n',""); ...