json字符串变量名和实体类变量名不一致时:
@SerializedName("person_name") String name;
@SerializedName("person_age") String age;
@SerializedName("person_sex") String sex;
json字符串变量名和实体类变量名不一致时:
@SerializedName("person_name") String name;
@SerializedName("person_age") String age;
@SerializedName("person_sex") String sex;