python我想知道这句的具体含义:thisonlyworkswithtwoliterals,notwitharbitrarystringexpress
什么是arbitrarystringexpression,什么事literals,有什么区别
Twostringliteralsnexttoeachotherareautomaticallyconcatenated;thefirst
lineabovecouldalsohavebeenwrittenword='Help''A';thisonlyworkswithtwoliterals,notwith
arbitrarystringexpressions: