bytes.Buffer for some long string or byte concatenation, it can indeed improve performance, but don’t forget that this will open up a space of const smallBufferSize = 64 size about jupiter HOT 3 CLOSED

string stitching

     In the case of existing string arrays, using strings.Join() can have better performance. 
In some occasions with higher performance requirements, 
try to use buffer.WriteString() to get better performance. , Use the operator directly, 
the code is shorter and clearer, and you can get better readability. 
If you need to concatenate not only strings, but also other needs such as numbers, 
you can consider fmt.Sprintf()