swift - 如何在Swift中编辑字典中的值

var airports : [String:String] = ["DXB" : "dubai international airport", "LHR" : "heathrow international airport"]

for (airportCode,airportName) in airports
{
airportName = airportName.capitalized
}

例如，我需要将所有值大写，但我得到了错误
“无法赋值：airportName是let常量

最佳答案

只需在for循环中添加var

var airports : [String:String] = ["DXB" : "dubai international airport", "LHR" : "heathrow international airport"]

for (var airportCode,var airportName) in airports
{
airportName = airportName.capitalized
airports[airportCode] = airportName
}