[Swift]字符串连接

一般的字符串之间连接可以直接用加号(+)连接

var str = "Hello "
str = str + "World"

1 2	var str = "Hello " str = str + "World"

swift也提供了一种类似于占位符的连接方式,可以连接字符串和其他类型

var str = "Hello "
str = str + "World"
var i = 100
str = "(str),other words,(i)"
println(str)//Hello World,other words,100

var str = "Hello "

str = str + "World"

var i = 100

str = "(str),other words,(i)"

println(str)//Hello World,other words,100

爱好玩