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代码说明：

  输入年份，可以进行是否为闰年的判断，并输出输入年份对应生肖，还能根据输入年份判断所属星座；并带有详细的注释信息 (Enter the year, you can determine whether it is a leap year, and the corresponding input and output Year Lunar New Year, but also to determine the input of the Zodiac Year and with detailed annotation information)