2

This question already has an answer here:

for this question, I want to know what's the command line that can combine two strings together, like "string a = string b + string c", but it seems that "+" is not compatible with the smart contract

marked as duplicate by The Officious BokkyPooBah, Waqar Lim May 3 '16 at 8:36

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Browse other questions tagged or ask your own question.