- 截取 String
var str = "（aaa）哈哈"
let index = str.range(of: "）")!
let preStr = str.prefix(upTo: index.upperBound) // “（aaa）”
let sufStr = str.suffix(from: index.upperBound)// “哈哈”
- 遍历 String
let str = "abcdefghhi"
for cha in str {
print(cha)
}
var str = "（aaa）哈哈"
let index = str.range(of: "）")!
let preStr = str.prefix(upTo: index.upperBound) // “（aaa）”
let sufStr = str.suffix(from: index.upperBound)// “哈哈”
let str = "abcdefghhi"
for cha in str {
print(cha)
}
截取 String 遍历 String
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本文标题：Swift String 相关
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