strcat(out_char_tmp, c); } strcpy(out_char, out_char_tmp); } void convert_char_to_uchar(char* in_char, unsigned char* out_uchar, int c_len) { int i; char char_buf[1024]; //unsigned char uchar_buf[1024]; memset(char_buf,0x0, sizeof(char_buf)); //memset(uchar_buf,0x0,...
@文心快码qt char转int 文心快码 在Qt中,将char类型转换为int类型是一个常见的操作。下面我将按照你的提示,详细解释如何进行这种转换,并编写相应的代码片段。 1. 理解Qt中char类型与int类型的区别 char类型在C++(包括Qt)中通常用于表示单个字符,它可以是有符号的(signed char)或无符号的(unsigned char),具体取决...
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); res[1]=(unsignedchar)((0x00ff0000&i)>>16); res[0]=(unsignedchar)((0xff000000&i)>>24);...
QHostAddress address(string); 11、QString转unsigned char QString string; bool ok; unsigned char uch = string.toInt(&ok, 16); 12、unsigned char转QString unsigned char uch; QString string = QString::number(uch,16); 13、int转QString int m; QString string; string=QString::number(m); ...
9、QHostAddress转QString QHostAddress address; QString string = address.toString(); 10、QString转QHostAddress QString string; QHostAddress address(string); 11、QString转unsigned char QString string; bool ok; unsigned char uch = string.toInt(&ok, 16); ...
QString转uint8_t unsigned char puchar[1024]; uint8_t *qstring2uint8(QString string){ char * pchar; QByteArray temparr; int len; temparr = string.toLatin1(); pchar = temparr.data(); len = temparr.size(); //将得到的char类型转为uchar convertStrToUnChar(pchar,puchar,len); retu...
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'}; string s = (char *)str; ...
1,int与double 代码语言:javascript 代码运行次数:0 复制 //int转doubleint a=1234;double b;b=a;//直接赋值就可以//double转intdouble c=123.456;int d;d=c;//d的结果为123,即只取整数部份d=c*1000;//乘1000将小数消掉即可,注意int位数要求,避免溢出 ...
(&buffer,"JPG");//QByteArray 转 QImageQByteArraybyte;QBufferbuffer(&byte);buffer.open(QIODevice::ReadOnly);QImageReaderreader(&buffer,"JPG");QImageimage=reader.read();//使用QImage的构造函数,有多个重载,具体可以参考Qt文档QImageimage=QImage((unsignedchar*)byte.data(),width,heigth,bytesPerLine,...
版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有...