Answer: The command-line arguments in TCL can be accessed using the 'argv' variable. Q5. What is the 'expr' command used for in TCL? Answer: The 'expr' command is used for evaluating arithmetic expressions in TCL. Q6. How do you concatenate strings in TCL? Answer: Strings can be co...
Theconcatcommand is used to concatenate (add) two lists. The above line joins two lists and the new list is set to the animals variable. puts [lsearch -exact $animals eagle] With thelsearchcommand we look for an eagle in the list. With the-exactoption we look for an exact match. The...
摘要:concat Concatenate lists into a new list join Join lists into a string lappend Append elements to list lindex Retrieve element from list linsert Inser阅读全文 posted @2019-08-02 17:09春风一郎阅读(230)评论(0)推荐(0) TCL Strings 摘要:append Append values to variable binary Insert and extr...
puts stdout {The length of $s is [string length $s].} => The length of $s is [string length $s]. In the second command of Example 1–10, the Tcl interpreter does variable and command substitution on the second argument to puts. In the third com- mand, substitutions are prevented,...
A string containing the text of the command, before any argument substitution. argv A list of the final argument information that will be passed to the command after command, variable, and backslash substitution. evalLevel The Tcl_Eval call level. procLevel The procedure call level. The command...
1)变量置换(variablesubtitution)变量置换由一个符号标记,变量置换会导致变量的值插入一个单词中。例如:%sety$x+100/y的值是10+100,这里x被置换成它的值1010100这时,y的值还不是我们想要的值110,而是10+100,因为TCL解释器把10+ 4、100看成是一个字符串而不是表达式,y要想得到值110,还必须用命令置换,使得...
in which bar is interpreted as neither a string nor a variable, since strings as operands in expressions MUST be surrounded by double quotes or braces. Change to wish: if {$foo == "bar"} {puts stdout bar} or wish: if {$foo == {bar}} {puts stdout bar} ...
### Concatenate MRN and patient account separated by a dash and move to PID-4 set ptAcct [lindex $PIDfieldlist 18] if {$MRNflag eq "MR"} { set mrn [lindex $MRNfieldlist 0] set PIDfieldlist [lreplace $PIDfieldlist 2 2 $mrn] set...
concatenate and evaluate set x {expr 3+5}; eval $x Tcl control flow for init test reinit body for {set i 0} {$i < 10} {incr i} {puts $i} foreach var list body if test1 body1 elseif test2 body2 ... else bodyn if {$x < 0} { ...
I'd like to concat some string-based variables and I want each of them in a new line. However, I can't find the correct way to write the code. This is what...