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所以我得到的错误。斯威夫特EXC_BAD_INSTRUCTION错误
var doorsKnocked = 20
var sales = 0
var avgDoorsKnocked = 45.4
var avgSales = 1.2
if Double(doorsKnocked/sales) < Double(avgDoorsKnocked/avgSales) {
doorsPerSaleTodayLabel.textColor = UIColor(red: 43/255, green: 182/255, blue: 115/255, alpha: 1.0)
}
我认为这与可选项有关,但我不知道该修复。
也许它必须做一些事情,你被零除:'doorsKnocked/sales'? –