将 javascript 正则表达式转换为 swift nsregularexpression

Question

我是 Swift 编程新手。

我在 javascript 中有一个有效的正则表达式，我在 swift

中需要相同的功能

str.replace(/\+/g, '-').replace(/\//g, '_').replace(/\=+$/, '');

Answer 1

Swift 2.3:

let str = "A+B/C===="

let result = str.stringByReplacingOccurrencesOfString("+", withString: "-")
                .stringByReplacingOccurrencesOfString("/", withString: "_")
                .stringByReplacingOccurrencesOfString("\=+$", withString: "", options: .RegularExpressionSearch)

print(str)
print(result)

Swift 3:

let str = "A+B/C===="

let result = str.replacingOccurrences(of: "+", with: "-")
                .replacingOccurrences(of: "/", with: "_")
                .replacingOccurrences(of: "\=+$", with: "", options: .regularExpressionSearch)

print(str)
print(result)