问个delphi输出问题
程序最后输出一个S，Writeln('S='，S)； 为啥不直接写writeln(s)
Writeln(C，'…'，d)；是啥意思
输出输出等式 N3=X2—Y2 或N*N*N=X*X—Y*Y为啥要写成Writeln(N,'*',N,'*', N,'=', X,'*', X,'—',Y,'*',Y)；
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下面是delphi帮助中的解释，自己看看吧
Delphi syntax:
procedure WriteLn([ var F: Text; ] P1 [, P2, ...,Pn ] );
Description
WriteLn is an extension to the Write procedure, as it is defined for text files.
After executing Write, WriteLn writes an end-of-line marker (line feed or carriage return/line feed) to the file.
If F is omitted, the global variable Output is used, which accesses the processes standard input file. Use of Output in GUI applications raises special issues.
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