E2003未声明的标识符：'IntToStr'

Question

Try to print index in popup of showmessage gives an compile time error.

[dcc32 Error] Unit.pas(57): E2003 Undeclared identifier: 'IntToStr' 

In my code I am using ShowMessage(IntToStr(J)); J is an integer.

Answer 1

您必须将SysUtils单元添加到调用单元的uses子句中。