error C2059: 语法错误 : “字符串”

[明日的明月]

_RecordsetPtr OpenSql(CString TblName,CString FldList("*"),CString Constr(""),CString OrderBy(""));
源代码是这样，为什么会出错，能告诉我怎么修改吗

[明日的明月]

谢谢了，问题解决了，结贴！~

[zaodt]

需要看到上下文

[明日的明月]

这里是声明，要看什么上下文呢？
_RecordsetPtr CADODataset::OpenSql(CString TblName,CString FldList,CString Constr,CString OrderBy)
{
//ASSERT(this->m_pAdocon->m_pConnection!=NULL);
ASSERT(this->m_pConnection!=NULL);
char sqlstr[256];
strcpy(sqlstr,"select ");
strcat(sqlstr,FldList); strcat(sqlstr," from ");
strcat(sqlstr,TblName);strcat(sqlstr," ");
strcat(sqlstr,Constr);strcat(sqlstr," ");strcat(sqlstr,OrderBy);
if (IsOpen())
{
this->m_pRecordset->Close();
}
m_pRecordset->Open((_variant_t) sqlstr,
this->m_pConnection.GetInterfacePtr(),
adOpenStatic,
adLockOptimistic,
adCmdText);
return m_pRecordset;
}
这里是定义

[一条晚起的虫]

_RecordsetPtr OpenSql(CString TblName,CString FldList("*"),CString Constr(""),CString OrderBy(""));
//_RecordsetPtr有这样的构造函数？

[菜牛]

先不管是什么，你的代码语法就是错误的，应该这样：
CString TblName(...);
_RecordsetPtr OpenSql(TblName,"*","","");

[一条晚起的虫]

//刚才短路了。默认值用赋值，不用构造
	_RecordsetPtr OpenSQl(CString TblName, CString FldList = "*", CString Constr = "", CString OrderBy = ""); 

[glunoy]

[Quote=引用 5 楼 lfchen 的回复:]
C/C++ code//刚才短路了。默认值用赋值，不用构造
_RecordsetPtr OpenSQl(CString TblName, CString FldList = "*", CString Constr = "", CString OrderBy = "");
[/Quote]

顶

[zsdhust]

对呀。