Tcl 中的循环命令是while、for和foreach。条件(转移)命令是if/then/else/elsif和switch。上述命令的限定语句是break、continue、return和error。最后,catch命令提供了错误处理能力。 if/then/else/elsif已在前面几屏中演示过。在正式语法中会用到then,但通常会省略掉它。 在左边这个示例中,foreach结构给switch命令提...
Tcl 中的循环命令是while、for和foreach。条件(转移)命令是if/then/else/elsif和switch。上述命令的限定语句是break、continue、return和error。最后,catch命令提供了错误处理能力。 if/then/else/elsif已在前面几屏中演示过。在正式语法中会用到then,但通常会省略掉它。 在左边这个示例中,foreach结构给switch命令提...
\c Replaced with literal c if c is not one of the cases listed above. In particular, \$, \", \{, \}, \], and \[ are used to obtain these characters. Arithmetic Operators Table 1–2 Arithmetic operators from highest to lowest precedence. -~! Unary minus, bitwise NOT, logical NOT...
/usr/bin/tclsh # # Demonstrate operators and # math functions set PI [expr 2 * asin(1.0)] if {$argc == 3} { set X [lindex $argv 0] set Y [lindex $argv 1] set Rad [lindex $argv 2] set Dist [expr sqrt(($X*$X)+($Y*$Y))] set Cir [expr 2*$PI*$Rad] set Area [...
# Demonstrate operators and # math functions set PI [expr 2 * asin(1.0)] if {$argc == 3} { set X [lindex $argv 0] set Y [lindex $argv 1] set Rad [lindex $argv 2] set Dist [expr sqrt(($X*$X)+($Y*$Y))] set Cir [expr 2*$PI*$Rad] set Area [expr $PI*$Rad*$Rad...
Isight高级教程adv_02_Tcl iSIGHTAdvancedTrainingTcl Tcl TheunderlyinglanguageofiSIGHTistheTool CommandLanguage,Tcl(pronouncedtickle)Properties InterpretiveProgrammableFewDataStructures-variables,lists,arraysOnedatatype-string 2 MDOLandTcl Userscancustomizetheirapplicationby addingTcltothe...
I bought this cool TCL smartwatch from Trendyol on January 6, 2023, it won't read any SIM cards even though I tried five different ones from three different operators. Every time, I get this error message telling me to put in a SIM card, what am I doing? There is only one spot ...
/usr/bin/Tclsh # #Demonstrateoperatorsand #mathfunctions setPI[expr2*asin(1.0)] if{$argc==3}{ setX[lindex$argv0] setY[lindex$argv1] setRad[lindex$argv2] setDist[exprsqrt(($X*$X)+($Y*$Y))] ...
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#Demonstrate operators and #math functions set PI [expr 2*asin(1.0)] if {$argc==3} { set X [lindex $argv 0] set Y [lindex $argv 1] set Rad [lindex $argv 2] set Dist [expr sqrt(($X*$X)+($Y*$Y))] set Cir [expr 2*PI*$Rad] set Area [expr $Rad*$Rad] puts stdout ...