初始化
let orangesAreOrange = true
let turnipsAreDelicious = false
使用
if turnipsAreDelicious {
println("Mmm, tasty turnips!")
}else{
println("Eww, turnips are horrible.")
}
let i = 1
if i {
// ---error
}
if i== 1 {
// ---successfully
}
The future belongs to those who believe in the beauty of their dreams.
初始化
let orangesAreOrange = true
let turnipsAreDelicious = false
使用
if turnipsAreDelicious {
println("Mmm, tasty turnips!")
}else{
println("Eww, turnips are horrible.")
}
let i = 1
if i {
// ---error
}
if i== 1 {
// ---successfully
}
integers提供了三种(8, 16, 32) signed unsigned IntInteger Boundslet minValue = UInt8.min //0let maxValue = UInt8.max //255Intlet intValue = 42Doublelet pi = 3.14159let anotherPi = 3 + 0.14159进制let decimalInteger = 17 //十进制let binaryInteger ...…
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