摘要: Swift 提示:Initialization of variable was never used consider replacing with assignment to _ or removing it 的原因: var //代表变量,变量的值可以改变 let//代表常量类型不可改变 var 阅读全文
posted @ 2016-09-25 08:49 会装系统的程序员 阅读(471) 评论(0) 推荐(0) 编辑