从float转换为nsdecimalnumber总是失败迅速

Question

我正在通过Web服务读取我的数据，该服务返回一个字符串的百分比，我需要在我的应用程序中正确格式化它。目前，我收到一条错误消息，内容为＆＃34;参数标签＆＃39;（_：）＆＃39;不匹配任何可用的重载＆＃34;。

有关如何解决此问题的建议？

            if let dUnInsured = result[0]["UnInsured"] as? String, let doubleNum = Double(dUnInsured) {
                let sUnInsured = dollarFormatter.string(from: (NSDecimalNumber(Decimal(doubleNum))))!
                self.inUninsured.text = sUnInsured
            }

Answer 1

尝试这样。

if let dUnInsured = result[0]["UnInsured"] as? String, let doubleNum = Double(dUnInsured) {
    let sUnInsured = dollarFormatter.string(from: (NSNumber(value: doubleNum)))!
    self.inUninsured.text = sUnInsured
}