Swift の Attribute

发布时间：2020-12-14 06:19:16 所属栏目：百科来源：网络整理

导读：1. @attribute name @attribute name (attribute arguments) 2. if #available(platform name version,...,*) { statements to execute if the APIs are available} else { fallback statements to execute if the APIs are unavailable}Excerpt From: Apple

1. 
@attribute name
@attribute name(attribute arguments)

2. 
if #available(platform name version,...,*) {
    statements to execute if the APIs are available
} else {
    fallback statements to execute if the APIs are unavailable
}






Excerpt From: Apple Inc. “The Swift Programming Language (Swift 3.1).” iBooks.

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!