說明符
For array properties, access specifiers must list methods rather than fields. 對(duì)于數(shù)組屬性，訪問說明符必需列出方法而不是域。
Properties have access specifiers, which determine how their data is read and modified. 屬性具有訪問說明符，用于確定讀寫數(shù)據(jù)。
