string - 如何在TCL中去除字符串中的空格？

Question

我需要从 TCL 中的字符串中去除前导和尾随空格。如何？

Answer 1

尝试这个 -

      string trim string ?chars?

Returns a value equal to string except that any leading or trailing characters from the set given by chars are removed. If chars is not specified then white space is removed (spaces, tabs, newlines, and carriage returns).

原始来源:- http://wiki.tcl.tk/10174