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While in a locked state, the string is protected in two ways: No other string can get a reference to the data in the locked string, even if that string is assigned to the locked string. The locked string will never reference another string, even if that other string is copied to the ...
当把字符串当作参数传递的时候,必须象LPCTSTR一样明确地声明它。其格式和功能与printf的形参一样(关于格式和参数的说明,参阅Run-Time Library Reference中的sprintf函数)。写入字符的末端没有字符被添加。 For more information, see sprintf in the Run-Time Library Reference. 更多说明参阅Run-Time Library Reference...
Simple_cstring Class Reference MySQL9.2.0 Source Code Documentation A wrapper class for null-terminated constant strings.More... #include <sql_string.h> Inheritance diagram for Simple_cstring: [legend] Public Member Functions voidset(const char *str_arg, size_t length_arg)...
参见:《C++ Reference manual》§12.2 在一些环境中,编译器有必要创建一个临时对象,这样引入临时对象是依赖于实现的。如果编译器引入的这个临时对象所属的类有构造函数的话,编译器要确保这个类的构造函数被调用。同样的,如果这个类声明有析构函数的话,也要保证这个临时对象的析构函数被调用。 编译器必须保证这个临时...
The locked string will never reference another string, even if that other string is copied to the locked string. 8 CString 只是处理串吗? 不对,CString不只是能操作串,而且还能处理内存块数据。功能完善吧!看这段代码 char p[20]; for(int loop=0; loop<sizeof(p); loop++) ...
AfxExtractSubString 從指定的來源字串擷取以單一字元分隔的子字串。 AfxFormatString1 以字串資料表中包含的字串中的格式字元%1 取代指定的字串。 AfxFormatString2 在字串數據表中包含的字串中,以兩個字串取代格式字元 「%1」 和「%2」。 AfxMessageBox 顯示訊息方塊。需求...
If the string contents are to be changed by a function, declare the parameter as a nonconstantCStringreference (CString&). Strings as Function Outputs Typically you can returnCStringobjects from functions becauseCStringobjects follow value semantics like primitive types. To return a read-only string...
Interface::ControlsWrappers::ETextBoxWrapper::GetValue(Interface::Controls::ETextBox ^,long &)' c:\MFLDR\einterface.dialogbase.dll: or 'int >Interface::ControlsWrappers::ETextBoxWrapper::GetValue(Interface::Controls::ETextBox ^,int &)' ...
Find()是从左往右查找;ReverseFind()是从右边往左查找,但是他们返回的地址都是从左往右数的。 示例:// CString::ReverseFind示例: CString s( “abcab” ); ASSERT( s.ReverseFind( ‘b’ ) == 4 ); ASSERT( s.Find( ‘b’ ) == 1 );