定义行星枚举类型，枚举常量从1开始编号，请填写下面的空格（不要添加多余的空格） enum Planet{Mercury= , Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune}
举一反三
- Which planet is the closest planet to the sun, Mercury, Mars, Venus or Jupiter
- Which planet is the easiest for people to see in the sky, Earth, Mercury, Venus or Jupiter
- The Vega and Altair, together with five major stars, Mercury, Mars, Jupiter, Venus, and Saturn, are called the Seven Luminaries.
- The Vega and Altair, together with five major stars, Mercury, Mars, Jupiter, Venus, and Saturn, are called the Seven Luminaries.
- 中国大学MOOC: 定义一个新的字符类型别名CHAR，请填写空白处（注意不要添加多余的空格 ）typedef CHAR;