On Thu, Jul 30, 2020 at 06:59:11PM +0000, zoujiaqing via Digitalmars-d wrote: [...] > The simplest way: > > int i = 99; > > string a = "text " ~ i ~ "!"; > > writeln(a); // text 99! You could just use std.conv.text: int i = 99; string a = text("blah ", i, "!"); writeln(a); // blah 99! T -- MASM = Mana Ada Sistem, Man!