小弟有问题请教
ls_sql="delete from crm_jdxmmx ";ls_sql+=" where jdjlh='"+jdjlh+"'";
ps= conn.prepareStatement(ls_sql);
ps.executeUpdate();
ps.close();
int row=0;
for (int i=0;i<jdxmbm.length ;i++ )
{
if (jdrybh[i].trim().equals(""))
{
continue;
}
row++;
提示我 java.lang.NullPointerException