Question

寻找最佳解决方案以创建多个子字符串，以使每个子字符串的长度不超过参数中的长度值。当包含在子字符串中时，它将空格转换为指定的分隔符（以逗号为例），并删除多余的空格。示例：

input string = "Smoking is one of the leading causes of statistics"

length of substring = 7

result = "Smoking,is one,of the,leading,causes,of,statist,ics."

input string = "Let this be a reminder to you all that this organization will not tolerate failure."

length of substring = 30

result = "let this be a reminder to you,all that this organization_will not tolerate failure."

Answer 1

我认为，最困难的部分是处理空间。这就是我想出的

class RoundRectLayer : CALayer {

    var rect : CGRect = .zero

    override func draw(in ctx: CGContext) {
        ctx.saveGState()
        var path = CGPath(roundedRect: rect,
                          cornerWidth: rect.size.width / 10,
                          cornerHeight: rect.size.height / 10,
                          transform: nil)
        ctx.addPath(path)
        ctx.setFillColor(UIColor.clear.cgColor)
        ctx.fillPath()
        path = path.copy(strokingWithWidth: 4.0,
                         lineCap: CGLineCap.butt,
                         lineJoin: CGLineJoin.bevel,
                         miterLimit: 0)

        ctx.addPath(path)
        let colors = [
            UIColor.yellow.cgColor,
            UIColor.red.cgColor
        ]
        ctx.fillPath()
        ctx.restoreGState()
    }
}

然后您可以这样称呼

  private string SplitString(string s, int maxLength)
  {
    string rest = s + " ";
    List<string> parts = new List<string>();
    while (rest != "")
    {
      var part = rest.Substring(0, Math.Min(maxLength, rest.Length));
      var startOfNextString = Math.Min(maxLength, rest.Length);
      var lastSpace = part.LastIndexOf(" ");
      if (lastSpace != -1)
      {
        part = rest.Substring(0, lastSpace);
        startOfNextString = lastSpace;
      }
      parts.Add(part);
      rest = rest.Substring(startOfNextString).TrimStart(new Char[] {' '});
    }

    return String.Join(",", parts);
  }

，输出为

  Console.WriteLine(SplitString("Smoking is one of the leading causes of statistics", 7));
  Console.WriteLine(SplitString("Let this be a reminder to you all that this organization will not tolerate failure.", 30));

将字符串分成给定长度的子字符串集，并用分隔符分隔

1 个答案: