couldn't read file "scene_5n": no such file or directory
    while executing
"source.orig scene_5n"
    ("uplevel" body line 1)
    invoked from within
"uplevel source.orig [list $fileName]"
    invoked from within
"if [$instance_ is_http_url $fileName] {
set buffer [$instance_ read_url $fileName]
uplevel eval $buffer
} else {
uplevel source.orig [list $fileName]
..."
    (procedure "source" line 8)
    invoked from within
"source "scene_5n""
    (file "/home/leixiaolei/ns-allinone-2.35/labs/aodv.tcl" line 59) 此帖出自小平头技术问答