如何获取冒号后的值?
示例字符串:“aaa:test,bbb:test,ccc:test”
我必须识别 aaa:, bbb:, ccc:以获取冒号后的值。
还有一个特例:“aaa:aaa:,bbb:bbb ,, ccc:test”
该值可能与变量具有完全相同的单词,也可能没有。此外,该值可能包含逗号。
答案 0 :(得分:2)
使用String的componentsnetSeparatedBy方法。我假设所有的键值都将由" ,"
let wordsArr = "aaa:test: , bbb:test,a , ccc:test".components(separatedBy: " , ") as [String]
这会给你一个单词{[aaa:test:],[bbb:test,a],[ccc:test]}
var aaa, bbb, ccc : String?
for (_,keyValueWords) in wordsArr.enumerated() {
var strKeyValuePair = keyValueWords
if strKeyValuePair.hasPrefix("aaa:") {
aaa = String(strKeyValuePair.characters.dropFirst(4))
}
else if strKeyValuePair.hasPrefix("bbb:"){
bbb = String(strKeyValuePair.characters.dropFirst(4))
}else if strKeyValuePair.hasPrefix("ccc:"){
ccc = String(strKeyValuePair.characters.dropFirst(4))
}
}
print("aaa=\(aaa!) , bbb=\(bbb!) , ccc=\(ccc!)")