学习a001swift教程变量字符串集合循环语句

A001.01-2014.06-WWDC2014Session402-Part #includeint{ o,World\n");return0;} o,WhatYouWillThevarvarvarlanguageName:varlanguageName:String=letlanguageName:String=ConstantsandletlanguageName:String=ConstantsandletlanguageName:String="Swift"varversion:Double=1.0ConstantsandlanguageName:=version:Double=year:Int=ConstantsandlanguageName:=version:Double=year:Int=varisAwesome:Boolean=ConstantsandlanguageName:=version:Double=year:Int=letisAwesome:Boolean=ConstantsandlanguageName:version:Double==year:Int=isAwesome:BooleanConstantsandlanguageName:=version:Double=year:Int=letisAwesome:Boolean=Typeversion==推导为String推导为Doubleyear=isAwesome推导为Int推导为BooleanUnicodeUnicodelanguageName=version=year=isAwesome=π=UnicodeUnicodelanguageName=version=year=isAwesome=π=="狗和牛"UnicodeUnicodelanguageName=version=year=isAwesome=π=="狗和牛"常量甲长亮甲letsomeString"这看起来就是一个字符串letsomeString这看起来就是一个字符串letsomeString这看起来就是一个字符串urlRequest.HTTPMethod=letsomeString这看起来就是一个字符串urlRequest.HTTPMethod=letcomponents= letsomeString这看起来就是一个字符串urlRequest.HTTPMethod=letcomponents= //["~", s",forcharacterin"Swift"{}SSforcharacterin"中文 "{}forcharacterin" "{}CombiningStringsand ="CombiningStringsand

="="CombiningStringsand =" =" // CombiningStringsand =" =" // lethappy 好开心 BuildingComplexBuildingComplexleta=3,b=BuildingComplexleta=3,b=3乘以5等于Stringleta=3,b=3乘以5等于letmathResult\(a)乘以\(b等于\(a*Stringleta=3,b=3乘以5等于letmathResult=3乘以5等于

乘以\(b等于\(a*Stringleta=4,b=4乘以7等于letmathResult=4乘以7等于

乘以\(b等于\(a*StringStringvarvariableString= StringvarvariableString=" variableString+="和小红"StringvarvariableString=" variableString+="和小红"//variableString现在的值应该是 StringvarvariableString=" variableString+="和小红"variableStringletconstantString三丧

StringvarvariableString=" variableString+="和小红"variableStringletconstantString三丧"constantString+="和乐疯"

StringvarvariableString=" variableString+="和小红"//variableString现在的值应该是 letconstantString三丧"constantString+="和乐疯"//error-constantStringcannotbeArrayandArrayandletcomponents= Arrayandletcomponents= //["~", s",//返回的是一个Array,不是ArrayandDictionary ArrayandDictionary varnames " ""三丧""乐疯ArrayandDictionary varnames " ""三丧""乐疯ArrayandDictionary varnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":ArrayandDictionary varnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":ArrayandDictionary varnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":Arrayandvarnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":Arrayandvarnames " ""三丧""乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":Typedvarnames 三丧乐疯Typedvarnames " ""三丧""乐疯Typedvarnames " ""三丧""乐疯"Typedvarnames " ""三丧""乐疯"Typedvarnames " ""三丧""乐疯"Typedvarnames " ""三丧""乐疯TypedvarnamesString 三丧乐疯TypedvarnamesString[ " ""三丧""乐疯TypedvarnamesString " ""三丧""乐疯Typedvarnames " ""三丧""乐疯Typedvarnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":Typedvarnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":Typedvarnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":一个字符串类型作为键，IntTypedvarnames 三丧乐疯varnumberOfLegs=["ant":6,"snake":0,"dog":一个字符串类型作为键，Intwhile!winCheck(){}forvari=1;i<=10;++i{}For-In:StringsandForIn语句:forcharacterin" A"{}For-In:ForIn语句fornumberin1...5{println("\(number)3

得\(number*}55得得For-In:ForIn语句fornumberin1..5{println("\(number)3

得\(number*}得得得For-In:ForIn语句letnumberOfLegs蚂蚁6小蛇0小狗4]for(animalName,legCount)innumberOfLegs{}For-In:ForIn语句letnumberOfLegs蚂蚁6小蛇0小狗4]for(animalName,legCount)innumberOfLegs{}ModifyinganModifyinganvar List松花蛋豆浆Modifyinganvar List松花蛋豆浆["["松花蛋豆浆Modifyinganvarshop List=["松花蛋","豆浆"] Modifyinganvarshop List=["松花蛋","豆浆"] Modifyinganvarshop List=["松花蛋","豆浆"] List啤酒Modifyinganvarshop List=["松花蛋","豆浆"] List啤酒["["松花蛋豆浆啤酒Modifyinganvarshop List=["松花蛋","豆浆"] List+="啤酒 List+=["枸杞香油五香粉Modifyinganvarshop List=["松花蛋","豆浆"] List+="啤酒 List+=["枸杞香油五香粉["["松花蛋豆浆啤酒枸杞香油五香粉Modifyinganvarshop List=["松花蛋","豆浆"] List+="啤酒 List+=["枸杞","香油","五香粉"] List[0]="6颗松花蛋"[["松花蛋"豆浆啤酒枸杞香油五香粉Modifyinganvarshop List=["松花蛋","豆浆"] List+="啤酒 List+=["枸杞","香油","五香粉"] List[0]="6颗松花蛋"[["6颗松花蛋"豆浆啤酒枸杞香油五香粉Modifyinganvarshop List=["松花蛋","豆浆"] List+="啤酒 List+=["枸杞","香油","五香粉"] List[0]="6颗松花蛋" List[3...5毛豆黄瓜["6["6颗松花蛋豆浆啤酒"枸杞香油五香粉Modifyinganvarshop List=["松花蛋","豆浆"] List+="啤酒 List+=["枸杞","香油","五香粉"] List[0]="6颗松花蛋" List[3...5毛豆黄瓜["6["6颗松花蛋豆浆啤酒"毛豆黄瓜ModifyingaModifyingavarnumberOfLegs蚂蚁6小蛇0小狗ModifyingavarnumberOfLegs蚂蚁6小蛇0小狗["["蚂蚁6小蛇0小狗ModifyingavarnumberOfLegs蚂蚁6小蛇0小狗numberOfLegs["蜘蛛ModifyingavarnumberOfLegs蚂蚁6小蛇0小狗numberOfLegs["蜘蛛["["蚂蚁6小蛇0小狗4蜘蛛ModifyingavarnumberOfLegs蚂蚁6小蛇0小狗==8["["蚂蚁6小蛇0小狗4