set myvar [error "my error message"] ; puts $errorInfo 作用域 set global_var "xyz" ; proc p1 {{x 1}} { puts [lindex $x 0] ; # default value if {[catch {puts $global_var} errmsg]} { puts $errmsg ; } global global_var ; if {[catch {puts $global_var} errmsg]} { puts...
如%set day(monday) 1 list:表示集合。 {}、{a b c {}}。 语法:list ? value ...? 函数:concat list ?list...? lindex list index llength list linsert list index value?value...? lappend varname value ?value...? 相关命令 unset:删除变量,可有任意多个参数。使用:%unset a b day(monday)...
.Create 如果没定义自己的Create函数,那么它是由默认的unknown过程调用的,其定义如下: Class instproc create {obj args} { set h [$self info heritage] foreach i [concat $self $h] { if {[$i info commands alloc] != {}} then { set args [eval [list $i] alloc [list $obj] $args] $ob...
set a 【set b "hello"】 实现执行 set b "hello" 并用其结果来替换源命令 中的方括号部分,产生一条新命令 set a "hello" //"hello" 为 set b "hello" 的返 //回值 最终的结果是b="hello" a="hello" 当命令的一个子域以方括号开始以方括号结束,表示要进行一个命令子替换。并执行该子命令,用...
27、eglobalvariableis$myglobalvar"setmyglobalvar79dumb_procOutput:Thevalueofthelocalvariableis4Thevalueoftheglobalvariableis79ListsLists就好像是Tcl中的一种特殊的数组。它把一堆东西放成一个集合,然后就像操作一个整体一样的操作它。Example 6.1:setsimple_list"JohnJoeMarySusan"putslindex$simple_list0putslin...
set b [expr $a == 10 ? 20: 30] puts "Value of b is $b\n" 1. 2. 3. 4. 5. 6. 7. 当编译和执行上面的程序,将会产生以下结果: Value of b is 30 Value of b is 20 1. 2. Tcl if语句 if语句包含一个布尔表达式后跟一个或多个语句。
When set to1, allstringarguments and return values are interpreted as UTF-8 strings. When set to0, they are interpreted as ANSI strings. In Chilkat v11.0.0 and later, the default value is1. Before v11.0.0, it was0. More Information and Examples ...
set value "the default value" } Q.B10- How can I use numbers with leading zeroes? In Tcl, numbers that start with a zero are interpreted as octal values (or hexadecimal, if the zero is immediately followed by an 'x'). Often, this is a useful feature, but there are some problems:...
This only happened with the Backlight set to anything above '70', and it worked properly at '70' and below. It only worked once with the Backlight set to '100' and the refresh rate at 120Hz, and that's when we were able to take the photo. As mentioned, this only happened with ...
foreach { section_id name default_value } $asgn { break } set current_value [get_global_assignment -name $name] # If the values are different, add a row to the table. if { ! [string equal -nocase $current_value $default_value] } { ...