关于JAVA里面赋值的问题

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//声明时可以直接以数组的方式赋值

private static int[] compositionAssistantHelpImageId = {R.drawable.composition_assistant_help_gridline,
R.drawable.composition_assistant_help_ratio, R.drawable.composition_assistant_help_spiral_rightdown};

//也可以以下面这样的方式来赋值，推荐用这种方式

private static int[] compositionAssistantHelpImageId = new int[]{R.drawable.composition_assistant_help_gridline,
R.drawable.composition_assistant_help_ratio, R.drawable.composition_assistant_help_spiral_rightdown};

private static int[] compositionAssistantHelpImageId ; //= {0,0,0};

//下面这种直接赋值的方式是有语法错误的

  static {
    if (Util.IsExport()) {
            compositionAssistantHelpImageId = { R.drawable.composition_assistant_help_gridline_ex,
                 R.drawable.composition_assistant_help_ratio_ex, R.drawable.composition_assistant_help_spiral_rightdown_ex};
    } else {
            compositionAssistantHelpImageId = { R.drawable.composition_assistant_help_gridline,
                 R.drawable.composition_assistant_help_ratio, R.drawable.composition_assistant_help_spiral_rightdown};
    }
    }

private static int[] compositionAssistantHelpImageId ; //= {0,0,0};

//应该以这种方式来赋值

    static {
    if (Util.IsExport()) {
            compositionAssistantHelpImageId = new int[]{ R.drawable.composition_assistant_help_gridline_ex,
                 R.drawable.composition_assistant_help_ratio_ex, R.drawable.composition_assistant_help_spiral_rightdown_ex};
    } else {
            compositionAssistantHelpImageId = new int[]{ R.drawable.composition_assistant_help_gridline,
                 R.drawable.composition_assistant_help_ratio, R.drawable.composition_assistant_help_spiral_rightdown};
    }
    }

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