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楼主 |
发表于 2016-11-7 09:31:55
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1.
- QByteArray ba;
- ba.resize(5);
- ba[0] = 0x3c;
- ba[1] = 0xb8;
- ba[2] = 0x64;
- ba[3] = 0x18;
- ba[4] = 0xca;
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QByteArray 支持判断信息类型。。。并且初始化0x -也就是16进制
2.直接强制换。。。
十进制->十六进制
- i=1024;
- ltoa(i,h,16);
- sprintf(hs,"%08s",h);
- printf("i=%d,hs=%s\n",i,hs);
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二进制-十六进制
- strcpy(bs,"00000000000000000000010000000000");
- i=strtol(bs,&e,2);
- ltoa(i,h,16);
- sprintf(hs,"%08s",h);
- printf("bs=%s,hs=%s\n",bs,hs);
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字符-十六进制
- strcpy(s,"a汉");
- i=0;
- while (1) {
- if (0==s[i]) break;
- sprintf(hs+i*2,"%02X",(unsigned char)s[i]);
- i++;
- }
- setlocale(LC_ALL,"chs");
- printf("s=%s,hs=%s\n",s,hs);
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