请教动态添加菜单的问题

[cwel]

如下代码添加一级菜单没问题：
menu m_temp
integer li_count

m_temp = create m_new
li_count = upperbound(m_genapp_main.item[])
m_genapp_main.item[li_count + 1] = m_temp
m_genapp_main.item[li_count + 1].text = "新菜单"
m_genapp_main.item[li_count + 1].tag = "001"

m_genapp_main.item[1].hide()
m_genapp_main.item[1].show()
destroy m_temp

在此基础上，再添加一个二级菜单，pb就崩了，什么问题？
menu m_temp
integer li_count,li_count1

m_temp = create m_new
li_count = upperbound(m_genapp_main.item[])
m_genapp_main.item[li_count + 1] = m_temp
m_genapp_main.item[li_count + 1].text = "新菜单"
m_genapp_main.item[li_count + 1].tag = "001"

li_count1 = upperbound(m_genapp_main.item[li_count+1].item[])
m_genapp_main.item[li_count+1].item[li_count1+1] = m_temp
m_genapp_main.item[li_count+1].item[li_count1+1].text = "新菜单1"
m_genapp_main.item[li_count+1].item[li_count1+1].tag = "0001"

m_genapp_main.item[1].hide()
m_genapp_main.item[1].show()

destroy m_temp

谢谢帮助！！！

[xiaozhe_song]

重新再用一个新的菜单变量初始化，别用之前一级菜单那个~