字節碼看Java代碼的執行

 public static void main(java.lang.String[]);
    Code:
       0: iconst_0
       1: istore_1
       2: iconst_0
       3: istore_2
       4: getstatic     #2                  // Field java/lang/System.out:Ljava/io/PrintStream;
       7: iload_1
       8: iinc          1, 1
      11: iinc          2, 1
      14: iload_2
      15: iadd
      16: invokevirtual #3                  // Method java/io/PrintStream.println:(I)V
      19: iload_1
      20: iinc          1, 1
      23: iinc          2, 1
      26: iload_2
      27: iadd
      28: istore_3
      29: getstatic     #2                  // Field java/lang/System.out:Ljava/io/PrintStream;
      32: iload_3
      33: invokevirtual #3                  // Method java/io/PrintStream.println:(I)V
      36: return
    LineNumberTable:
      line 10: 0
      line 11: 2
      line 12: 4
      line 13: 19
      line 14: 29
      line 15: 36
    LocalVariableTable:
      Start  Length  Slot  Name   Signature
          0      37     0  args   [Ljava/lang/String;
          2      35     1     a   I
          4      33     2     b   I
         29       8     3     c   I
}