swift Dictionary操作

定义字典Dictionary<String,AnyObject>，Dictionary<String,String>:key一般是String类型，如果value类型统一

//Dictionary：定义swift字典

var dictTest:Dictionary<String,AnyObject> = ["name":"Hellen","age":12]

//向字典添加值

dictTest["number"] =1002

dictTest["height"] =178.5

dictTest["weight"] =56

print(dictTest)

//["height": 178.5, "age": 12, "number": 1002, "weight": 56, "name": Hellen]

dictTest.indexForKey("name")

print(dictTest.indexForKey("name"))

//更新数据

dictTest.updateValue(178, forKey:"number")

print(dictTest)

//["age": 12, "number": 178, "name": Hellen]

//移除数据

dictTest.removeValueForKey("age")

print(dictTest)

//["number": 178, "name": Hellen]

print("dictTest =\(dictTest) and name =\(dictTest["name"]) and age =\(dictTest["age"])")

也可以转换成NSDictionary操作

var nsdict:NSDictionary =dictTest as NSDictionary

print("nsdict =\(nsdict) and name =\(nsdict["name"]) and age =\(nsdict["age"])")

print("nsdict =\(nsdict) and name =\(nsdict.objectForKey("name")) and age =\(nsdict.objectForKey("age"))")