数组 – 使Swift数组语句更简洁

在编程时我是新手,刚开始学习 Swift.对于我正在努力解决的以下阵列概念,我们将不胜感激.

如何缩短以下编码,以便减少If语句的数量.因此,当选择“battlename = name [0]”索引时,语句会自动选择相同索引级别的相应怪物,而不必使用如此多的If语句.

希望我有意义.

var names = ["Lancelot", "Arthur", "Gawain", "Galahad"]
var monsters = ["Dragon", "Boar", "Giant", "Griffin"]
let battlename = names[1]
print(battlename, "Vs.", monsters)

if battlename == names[0] {
print(battlename, "Vs.", monsters[0])
}
else if battlename == names[1] {
print(battlename, "Vs.", monsters[1])
}
else if battlename == names[2] {
print(battlename, "Vs.", monsters[2])
}
else if battlename == names[3] {
print(battlename, "Vs.", monsters[3])
}

您可以使用以下单个条件替换所有条件：

if let index = names.indexOf(battlename) {
    print(battlename, "Vs.", monsters[index])
}

此外,如果您想要在简介中打印怪物名称列表,而不是仅打印数组,您可以将项目作为字符串加入：

print(battlename, "Vs.", monsters.joinWithSeparator(", ")) // "Arthur Vs. Dragon, Boar, Giant, Griffin"