error C2664: 'memcpy' : cannot convert parameter 2 from 'char' to 'const void *' error C2664: 'cvLoadImage' : c...

error C2664: 'write' : cannot convert parameter 1 from 'struct Account *' to 'const char *'

1.error C2106:
\u5e94\u4e3a\u6ca1\u7ed9\u51faAccount\u7684\u7ed3\u6784\uff0c\u65e0\u6cd5\u786e\u8ba4\u9519\u8bef\u3002
\u8bf7\u786e\u8ba4\u5bf9\u5e94\u884c\uff0c\u770b = \u64cd\u4f5c\u7684\u6210\u5458\u7c7b\u578b\uff0c\u662f\u5426\u4e3a \u6570\u7ec4\uff0c\u5982 char [] \u7c7b\u578b\u7684\u3002
\u5982\u679c\u662f \u5b57\u7b26\u4e32\uff0c\u5e94\u4f7f\u7528 strncpy \u4e4b\u7c7b\u7684\u51fd\u6570\uff1b
\u5982\u679c\u662f \u5176\u5b83\u6570\u7ec4\uff08\u5982 int[] \u7c7b\u578b\u7684\uff09\uff0c\u53ef\u4f7f\u7528 memcpy \u51fd\u6570\u3002
2.error C2664:
outfile.write((const char*)p1,sizeof(struct Account));//\u52a0\u4e2a\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u5427

Qt\u4e0b\u9762\uff0c\u5b57\u7b26\u4e32\u90fd\u7528QString\uff0c\u786e\u5b9e\u7ed9\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u65b9\u4fbf\uff0c\u60f3\u60f3VC\u91cc\u9762\u5b9a\u4e49\u7684\u5404\u79cd\u53d8\u91cf\u7c7b\u578b\uff0c\u800c\u4e14\u51fd\u6570\u53c2\u6570\u7c7b\u578b\u4e94\u82b1\u516b\u95e8\uff0c\u7ecf\u5e38\u9700\u8981\u4eca\u5e74\u65b0\u90a3\u4e2a\u7c7b\u578b\u8f6c\u6362
Qt\u518d\u4f7f\u7528\u7b2c\u4e09\u65b9\u5f00\u6e90\u5e93\u65f6\uff0c\u7531\u4e8e\u5e93\u7684\u7c7b\u578b\u57fa\u672c\u4e0a\u90fd\u662f\u6807\u51c6\u7684\u7c7b\u578b\uff0c\u5b57\u7b26\u4e32\u9047\u7684\u591a\u7684\u5c31\u662fChar*\u7c7b\u578b
\u5728Qt\u4e0b\u600e\u6837\u5c06QString\u8f6cchar*\u5462\uff0c\u9700\u8981\u7528\u5230QByteArray\u7c7b\uff0cQByteArray\u7c7b\u7684\u8bf4\u660e\u8be6\u89c1Qt\u5e2e\u52a9\u6587\u6863\u3002
\u56e0\u4e3achar*\u6700\u540e\u90fd\u6709\u4e00\u4e2a\u2018/0\u2019\u4f5c\u4e3a\u7ed3\u675f\u7b26\uff0c\u800c\u91c7\u7528QString::toLatin1()\u65f6\u4f1a\u5728\u5b57\u7b26\u4e32\u540e\u9762\u52a0\u4e0a\u2018/0\u2019
\u65b9\u6cd5\u5982\u4e0b\uff1a
Qstring str;
char* ch;
QByteArray ba = str.toLatin1();
ch=ba.data();
\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86QString\u5411char*\u7684\u8f6c\u5316\u3002\u7ecf\u6d4b\u8bd5\u7a0b\u5e8f\u8fd0\u884c\u65f6\u4e0d\u4f1a\u51fa\u73b0bug
\u6ce8\u610f\u7b2c\u4e09\u884c\uff0c\u4e00\u5b9a\u8981\u52a0\u4e0a\uff0c\u4e0d\u53ef\u4ee5str.toLatin1().data()\u8fd9\u6837\u4e00\u90e8\u5b8c\u6210\uff0c\u53ef\u80fd\u4f1a\u51fa\u9519\u3002

\u8865\u5145\uff1a\u4ee5\u4e0a\u65b9\u6cd5\u5f53QString\u91cc\u4e0d\u542b\u4e2d\u6587\u65f6\uff0c\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u662fQString\u5185\u542b\u6709\u4e2d\u6587\u65f6\uff0c\u8f6c\u6362\u4e3achar*\u5c31\u662f\u4e71\u7801\uff0c\u91c7\u7528\u5982\u4e0b\u65b9\u6cd5\u89e3\u51b3\uff1a
\u65b9\u6cd51\uff1a
\u6dfb\u52a0GBK\u7f16\u7801\u652f\u6301\uff1a
#include
QTextCodec::setCodecForTr(QTextCodec::codecForName("GBK"));
QTextCodec::setCodecForLocale(QTextCodec::codecForName("GBK"));
\u7136\u540e\u6539\u53d8\u4e0a\u9762\u7684\u7b2c\u4e09\u884c\u4e3a\uff1aQByteArray ba = str.toLoacl8Bit(); toLoacl8Bit\u652f\u6301\u4e2d\u6587
\u65b9\u6cd52\uff1a
\u5148\u5c06QString\u8f6c\u4e3a\u6807\u51c6\u5e93\u4e2d\u7684string\u7c7b\u578b\uff0c\u7136\u540e\u5c06string\u8f6c\u4e3achar*\uff0c\u5982\u4e0b\uff1a
std::string str = filename.toStdString();
const char* ch = str.c_str();

memcpy(downpower,buffer[i],23);
memcpy(snr,buffer[i],15);
buffer[i]换成&buffer[i].
函数参数类型要求是指针型，而你的参数是字符型，因此出错。

扩展阅读：www.sony.com.cn ... aoc e2243fw ... e人e本a2 ... e人e本t8s ... 日本资生堂色谱柱 ... error c4996 ... www.paperyy.com ... e人e本80008 ... error c2447 ...