📅  最后修改于: 2022-03-11 14:57:50.907000             🧑  作者: Mango
List < String > strList = new List < String > { 'Test 1', 'Test 2', 'Test 3' };
String str = String.join( strList, ', ' );
system.debug( 'Joined with coma is ' + str );