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Tcl/TkでHello, world!

Last updated at Posted at 2018-12-02

Tk編

タイトルでHello, world!

hello.tcl
wm title . "Hello, world!"

よくあるHello, world!

hello.tcl
pack [label .l -text "Hello, world!"]

細切れにHello, world!

hello.tcl
set buffer "Hello, world!"
set length [string length $buffer]
for {set i 0} {$i < $length} {incr i} {
    lappend labels [label .l$i -text [string index $buffer $i]]
}
grid {*}$labels

ボタンを押したらHello, world!

hello.tcl
pack [button .b -text click! -command [list tk_messageBox -message "Hello, world!"]]

ダブルクリックでHello, world!

hello.tcl
pack [label .l -textvariable buffer]
bind . <Double-1> [list set buffer "Hello, world!"]

ちょっと遅れてHello, world!

hello.tcl
pack [label .l -textvariable buffer]
after 3000 [list set buffer "Hello, world!"]

閉じようとしたらHello, world!

hello.tcl
bind . <Destroy> [list tk_messageBox -message "Hello, world!"]
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