主题：“每次执行一次循环检测时，都会被初始化一次”，是什么意思

Variable: Myholding=0;

DEBUGFILE('C:\test.txt','VS:%.0f',Myholding);
IF ISLASTBAR THEN
BEGIN
 IF Myholding=0 THEN
 BEGIN
  Myholding:=1;
  DEBUGFILE('C:\test.txt','Myholding:%.0f',Myholding);
 END
END

按照我的理解，在Myholding:=1后，应该保持为1。但实际测试文件的结果如下：

2010-07-28 11:12:00.265    VS:0
2010-07-28 11:12:00.265    Myholding:1
2010-07-28 11:12:05.734    VS:0
2010-07-28 11:12:05.734    Myholding:1
2010-07-28 11:12:10.718    VS:0
2010-07-28 11:12:10.718    Myholding:1
2010-07-28 11:12:15.718    VS:0
2010-07-28 11:12:15.718    Myholding:1
2010-07-28 11:12:20.734    VS:0
2010-07-28 11:12:20.734    Myholding:1
2010-07-28 11:12:25.718    VS:0
2010-07-28 11:12:25.718    Myholding:1
2010-07-28 11:12:30.734    VS:0
2010-07-28 11:12:30.734    Myholding:1
2010-07-28 11:12:35.718    VS:0
2010-07-28 11:12:35.734    Myholding:1