题目内容
1. public class test { 2. public static string output = “” 3. 4. public static void foo(int i) { 5. try { 6. if(i= =1) { 7. throw new Exception (); 8. } 9. output += “1”; 10.} 11. catch(Exception e) { 12. output += “2”; 13. return; 14.} 15. finally ( 16. output += “3”; 17. ) 18. output += “4”; 19. } 20. 21. public static void main (string args[]) ( 22. foo(0); 23. foo(1); 24. 25. ) 26. } What is the value of the variable output at line 24?()
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