lingo中出现问题：subscript out of range on attribute,

为什么下面程序用lingo运行时出现subscript out of range on attribute 求解释? subscript out of range 什么意思? “subscript out of 显示器出现out of range怎解决 Run-time error'9':subscript out of out of range out of range是什么 out of range 啥意思 显示器提示 OUT OF RANGE string index out of range lingo求解出现问题 进魔兽世界时出现"Scan line index out of range"是什么意思 怎么办