表 6-1 数组操作命令表 命令格式 array exists arr array get arr ?pattern? array names arr ?pattern? array set arr list array size arr array startsearch arr array nextelement arr index array donesearch arr index parray arr 说明 判断 arr 是否为数组变量,是返回 1 返回一个包含交替出现索引,...
tsv::exists array ?element? Returns boolean indicating whether the given ele- ment exists, or if no element is given, whether the shared array exists. tsv::get array element ?var- name? Returns the value of the shared variable. If varname is provided, the value is stored in the ...
Reading our Element G series review or Hisense H6570G review highlights how even more budget-friendly options can offer an excellent resolution for many users. However, if you don’t need 4K quality, there are still options that provide great picture quality, like in our Samsung N5200 review....
while {[array anymore days $start]} { Thearray anymorecommand returns 1 if there are any more elements left to be processed in an array search. set key [array nextelement days $start] Thearray nextelementcommand returns the name of the next element in the array. ...
which prevents the substitution of the value of the array element. Dubious answer #3 (backquotes and double-quotes): button $myname -text $label -command \ "puts stdout \$ArrayOfDynamicStuff($label)" Why? This only works if the value of $label has no special characters or whitespace. ...
if {![info exists foobar]} { set foobar 0 } else { incr foobar } Example 7–6 on page 86 implements a new version of incr which handles this case. More about Math Expressions This section describes a few fine points about math in Tcl scripts. In Tcl 7.6 and earlier versions math ...
Vivado%:setall_env_var [array namesenv] It is possible to check if an environment variable exists (i.e a key toenvarray exists) by using theinfocommand. For example to check forMYVARNAME: Vivado%if{[info existsenv(MYVARNAME)]} { … } ...
{variableName arrayElement operation} { set op(w) "Write"; set op(u) "Unset"; set op(r) "Read" ;#定义一个操作数组 set level [info level] 第 45 页共 63 页 incr level -1; if {$level > 0} { set procid [info level $level] } else {set procid "main"} 中 ;#当级别为零,...
Sets jarr to reference the JSON array found at index, where indexing starts at 0. Returns 1 for success, 0 for failure. top BoolAt # index is an integer set retBool [CkJsonArray_BoolAt $index]Introduced in version 9.5.0.56Returns the boolean value of the Nth array element. Indexing ...
序号 函数 描述 1 array startsearch arrayName 得到数组第一项,返回的是id 2 array nextelement arrayName searchID 得到数组的下一项,返回的是id 第 25 页共 75 页 3 array anymore arrayName searchID 根据当前的id 判断是否还有内容,返回1 为找到,返回0 为没有找到 4 array donesearch arrayName search...