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import Foundation
extension String {
// 全角字符串转为半角字符串
public var halfwidthString: String {
let text:CFMutableString = NSMutableString(string: self) as CFMutableString
CFStringTransform(text, nil, kCFStringTransformFullwidthHalfwidth, false)
return text as String
}
// 半角字符串转为全角字符串
public var fullwidthString: String {
let text:CFMutableString = NSMutableString(string: self) as CFMutableString
CFStringTransform(text, nil, kCFStringTransformFullwidthHalfwidth, true)
return text as String
}
}
其他类型的字符串转换类似，具体可查阅 官方文档 。