摘要:
// Playground - noun: a place where people can playimport Cocoavar str = "Hello, playground"var dic:Dictionary=[1:"Name",2:"Age"]for (id,name) in dic{... 阅读全文
摘要:
// Playground - noun: a place where people can playimport Cocoavar str = "Hello, playground"// 定义常量let schoolNum:String="罗子山中心小学"// 定义变量var age:Int=19... 阅读全文