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来自「浙江大学计算机学院数据结构课程的教学课件」· HTM 代码 · 共 51 行

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<font face="Arial, Helvetica, sans-serif" size="4"><b><font size="5" color="#FF0033">2. Union</font>
 <font color="#0033CC">DEFINITION</font>
 <font color="#FF0033">Union ~ Structure</font>
     only one field of the union is <font color="#0033CC">"active" </font>at any given time.
 
<font color="#0033CC"> REPRESENTATION</font>
    typedef  struct   <font color="#FF0033"><i>Sex_type</i></font> {
                                  enum tag_field  { female, male}  sex;
                                  union  {
                                               int  children;
                                               int  bear;
                                               }  u;
                                 };
     typedef   struct <i><font color="#FF0033">human_being</font></i> {
                             char  name[ 10];
                             int  age;
                             float salary;
                             date dob;            <i><font size="3" color="#FF0099">/* date of birth day */</font></i>
                             sex_type sex_info;
                              }; 
human_being  <i>person1, person2;</i>

<i>person1.sex_info.sex = male;
person1.sex_info.u.bear = FALSE;
person2.sex_info.sex = female;
person2.sex_info.u.children = 4;</i></b></font>

  
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