let randsign = Int(arc4random_uniform(2) + 1)
//This function returns a random operator
func whatSign(par1:Int)-> String {
if (par1 == 1){
return "+"
}
else {
return "-"
}
}
var sigh = whatSign(par1: randsign)
let randnum1:Any = Int (arc4random_uniform(10) + 1)
let randnum2:Int = Int (arc4random_uniform(10) + 1)
//我希望變量「finVal」進行數學運算,但它不確實,因爲變量「符號」是字符串我不知道如何讓它們增加或減少,它有一種方法來做到這一點。基本上,我想1「+」 3 = 4,但我得到1 + 3
let finVal = "\(randnum1)\(sigh)\(randnum2)"
print(finVal)
//When I print I get for example 1-3, 9-4, 8+2 .But I wanted them to do arithmetic
我什至不明白問題是什麼...請給予更多細節預期的輸入和輸出... – Rudy
當你寫入任何「」引號,然後它被視爲字符串。它不被視爲算術符號 –
@JeckyModi有沒有辦法讓我可以變成算術符號? – Jenny