把你的程序贴出来看看，

Thanks a lot for  master"蓝色" reply!!
The questions I presented before have been solved!
As I used a do file rather than ado files, the order "End" can't be applied ! But so far, I don't know the difference between do files and ado files.
As to the second question, It is because some values being computed is so big that they are beyond the limit of computing ability of computers, so I can't obtain any relavant value.

Thanks again!

Note: As I am reloading my operation system, so reply in English.

楼主解决了这个问题吗？<br>
同遇到这个问题，在do文件写入input命令，然后结尾end，运行报错