Tcl uses objects called channels to read and write data. The channels can be created using theopenorsocketcommand. There are three standard channels available to Tcl scripts without explicitly creating them. They are automatically opened by the OS for each new application. They arestdin,stdoutands...
temporary file set tmp [::fileutil::tempfile foo]set f [open $tmp "w"]puts $f "lorem ipsum"close $fputs "tmp file: $tmp" f = io.tmpfile() f:write("lorem ipsum\n") f:close() directories tclluanode.jsgroovy build pathname file join "/etc" "hosts" var path = require('pat...
temporary file set tmp [::fileutil::tempfile foo]set f [open $tmp "w"]puts $f "lorem ipsum"close $fputs "tmp file: $tmp" f = io.tmpfile()f:write("lorem ipsum\n")f:close()directories tclluanode.jsgroovy build pathname file join "/etc" "hosts" var path = require('path')...
Tcl中涉及运行程序,查看文件系统和以及通过env数组来存取换将变量的命令有:exec、file、open、close、read、write、puts、gets、flush、seek、tell、glob、pwd、cd、exit、pid和registry命令。1execexec 命令从Tcl解释器中运行其它进程。exec 命令和从 unix shell 命令行或者 unix shell 脚本中调 ...
Returns 1 if the current open file is at the end-of-file. top FileOpenError integerset intVal [CkFileAccess_get_FileOpenError $myFileAccess] This property is set by the following methods: FileOpen, OpenForRead, OpenForWrite, OpenForReadWrite, and OpenForAppend. It provides an error code...
使用`open`和`close`命令来打开和关闭文件。 使用`read_file`和`write_file`来读取和写入文件内容。 7.错误处理:使用`catch`命令来捕获和处理错误。 8.调试信息输出:使用`puts`命令来输出调试信息。 9.变量:使用`set`命令来定义变量。例如,`set value 10`。 10.函数:可以使用`proc`命令来定义函数。例如,`...
2Example2(变数)3Example3(表示式)4Example4(流程控 制)5Example5(程序)6Example6(阵列)7Example7(输出)[编 辑] Example1(变数) 本练习主要让使用者了解何谓变数，及变数的替换；所谓的变数，即是用来存放各种资料的容器，这些变数都有各自的名称，名称皆不能重复。 在TCL中变数可用"set"及"unset"来...
DString(3), fconfigure(n), filename(n),fopen(3),Tcl_CreateChannel(3)KEYWORDS access point, blocking, buffered I/O, channel, channel driver, end of file, flush, input, nonblocking, output, read, seek, writeTcl8.3Tcl_OpenFileChannel(3)...
Tcl中涉及运行程序,查看文件系统和以及通过env数组来存取换将变量的命令有:exec、file、open、close、read、write、puts、gets、flush、seek、tell、glob、pwd、cd、exit、pid和registry命令。 1exec exec 命令从 Tcl 解释器中运行其它进程。 exec 命令和从 unix shell 命令行或者 unix shell 脚本中调用一个进程相似...
puts $filename "text to write" A simple example for writing to a file is shown below.#!/usr/bin/tclsh set fp [open "input.txt" w+] puts $fp "test" close $fpWhen the above code is compiled and executed, it creates a new file input.txt in the directory that it has been ...