About string and int spliced together.

[Dennis]

On Thursday, 18 June 2020 at 09:00:42 UTC, zoujiaqing wrote:
> Type should be automatically converted to string!

While this could be made to work for floating point numbers, it 
is ambiguous for integers since integers are often implicitly 
convertible to characters:

writeln("AB"~67); // prints "ABC", code unit 67 represents 'C'

You might be interested in Adam's string interpolation DIP though:
https://github.com/dlang/DIPs/pull/186