就是指公众的意思。
例如：
to act as a focus for people - patients, doctors and the public alike - to raise awareness of psoriasis and to give these people the attention and consideration they deserve.
为了引起人们的关注--包括患者，医生和公众--也为了提高对银屑病的认知并且给这些患者以更多的关注和关怀。
public alike公共函数
public 公共的 alike 函数名
公众一样
