4. `HMENU`(Menu Handle):用于表示菜单的句柄。 5. `LPCTSTR`(Long Pointer to a Constant Null Terminated String):用于表示以Null结尾的常量字符串指针。 6. `LPVOID`(Long Pointer to Void):用于表示指向任意类型的指针。 7. `DWORD`(Double Word):无符号32位整数类型。 8. `LPARAM`(Long Parameter):...
其MyArray在内存空间的分布,每个整数需要4个字节,因此整个数组将占20个字节的内存,如下: 1、多维数组 constCArray:array[0..4]ofInteger = (-20, -100,0,100,200);{数组常量的在声明的同时也要进行赋初值}varMyArray:array[0..2,0..4]ofInteger;{两维数组的声明}UArray:array[10..20]ofInteger;{...
Constant expression violates subrange bounds 常量表达式超出子界范围 Constant object cannot be passed as var parameter 常量对象不能作为变量参数传递 Constant or type identifier expected 要求常量或类型标识符 Constants cannot be used as open array arguments 常量不能用作打开数组参数 Constructing instance of '...
代码语言:delphi 复制 const MyConstant = 10; procedure TForm1.Button1Click(Sender: TObject); begin ShowMessage(IntToStr(MyConstant)); end; 在这个例子中,MyConstant是一个const变量,它的值在编译时期就已经确定为10。在程序运行期间,您不能更改MyConstant的值。 总之,您可以在Delphi 7中为const变量赋...
Timeouts.WriteTotalTimeoutConstant :=0;ifnotSetCommTimeouts(hComm, Timeouts)thenExit; Result := True;end; 复制代码 编写读取串口数据的函数。 functionReadSerialPort(varBuffer:arrayofByte; Count: Integer):Integer;beginResult :=0;ifnotReadFile(hComm, Buffer, Count, DWORD(Result),nil)thenResult :...
delphi tfilestream的分块读入 delphi readln,Delphi常见错误1、编译期错误信息信息说明';'notallowedbefore'ELSE'ElSE前不允许有“;”''clausenotallowedinOLEautomationsection在OLE自动区段不允许“”子句''isnotatypeidentifier不是类型标识符''notpreviouslydeclareda
Slice standard function only allowed as open array argument Slice标准函数只允许作为打开数组参数 Statement expected, but expression of type '<type>' found要求语句,但出现类型<TYPE>的表达式 Statements not allowed in interface part在界面中不允许的语句 String constant too long字符串常量太长 String constan...
varidentifier: type = constantExpression; whereconstantExpressionis any constant expression representing a value of typetype. Thus the declaration: varI:Integer=7; is equivalent to the declaration and statement: varI:Integer;...I:=7; Local variables cannot be initialized in their declarations. Multip...
Color constant representation for code completion has been improved. When completing a color constant, the colors are shown larger and in a square; the hex and RGB values are shown; and system colors are shown correctly (following the system theme, not the IDE theme). This includes both TCol...
Constant or type identifier expected 要求常量或类型标识符 Constants cannot be used as open array arguments 常量不能用作打开数组参数 Constructing instance of <name> containing abstract methods 构造的<name>实体包含抽象的方法 Could not compile used unit <Unitname> 不能用单元<Unitname>编译 Could not ...