3 ms·http://tcl.tk/man/tcl8.6/TclCmd/try.htm http://tcl.tk/man/tcl8.6/TclCmd/try.htmby paulwal 6y agohttp://tcl.tk/man/tcl8.6/TclCmd/try.htm http://tcl.tk/man/tcl8.6/TclCmd/try.htm