C#字符串不包含文本

我在一个类似的文本框中输入了一个短语：“塔里明天的天气如何？”

此时，此代码将郊区字符串设置为大写名称，并将郊区设置为值

public void requestedSuburb(String suburbFromForm1)
{
    suburb = suburbFromForm1;

    if (suburb.Contains("taree"))
    {
       suburb = "Taree";
       suburbID = "zmw:00000.1.95784.xml";
    }
    else if (suburb.Contains("port macquarie"))
    {
       suburb = "Port Macquarie";
       suburbID = "zmw:00000.1.94787.xml";
    }

（如果此点下方有语句，则使用检查更多郊区名称

整个InputExtBox.Text被传递到字符串中，用于检查上述内容

我的问题是，是否有一个else if语句可以检查郊区字符串，如果没有找到郊区的文本，它可以默认为一个选择？（即：我希望“Taree”是默认设置。）

我现在得到的是这个，但它没有返回任何内容：

else if (!suburb.Contains("taree") || (!suburb.Contains("port macquarie")))
{
   suburb = "Port Macquarie"
   suburbID = "zmw:00000.1.94787.xml";
}

---

您只需要在所有

else的末尾添加一个
else，如果是这样的话：

if (suburb.Contains("taree"))
{
   suburb = "Taree";
   suburbID = "zmw:00000.1.95784.xml";
}
else if (suburb.Contains("port macquarie"))
{
   suburb = "Port Macquarie";
   suburbID = "zmw:00000.1.94787.xml";
}
else {
  suburb = "default";
}

if (suburb.Contains("taree"))
{ 
    suburb = "Taree";
    suburbID = "zmw:00000.1.95784.xml";
}
else if (suburb.Contains("port macquarie"))
{
    suburb = "Port Macquarie";
    suburbID = "zmw:00000.1.94787.xml";
}
else
{
    suburb = "Taree";
    suburbID = "zmw:00000.1.95784.xml";
}

// Default values
suburb = "Taree";
suburbID = "zmw:00000.1.95784.xml";

if (suburb.Contains("port macquarie")
{
    suburb = "Port Macquarie";
    suburbID = "zmw:00000.1.94787.xml";
}

您只需要
其他
：

if (suburb.Contains("taree"))
{
   suburb = "Taree";
   suburbID = "zmw:00000.1.95784.xml";
}
else if (suburb.Contains("port macquarie"))
{
   suburb = "Port Macquarie";
   suburbID = "zmw:00000.1.94787.xml";
}
else
{
    // this fires if nothing else above is correct
    suburb = "Taree";
    suburbID = "zmw:00000.1.95784.xml";
}

使用
else
处理默认设置，如下所示：

if (suburb.Contains("taree"))
{
   suburb = "Taree";
   suburbID = "zmw:00000.1.95784.xml";
}
else if (suburb.Contains("port macquarie"))
{
   suburb = "Port Macquarie";
   suburbID = "zmw:00000.1.94787.xml";
}
else {
  suburb = "default";
}

if (suburb.Contains("taree"))
{ 
    suburb = "Taree";
    suburbID = "zmw:00000.1.95784.xml";
}
else if (suburb.Contains("port macquarie"))
{
    suburb = "Port Macquarie";
    suburbID = "zmw:00000.1.94787.xml";
}
else
{
    suburb = "Taree";
    suburbID = "zmw:00000.1.95784.xml";
}

// Default values
suburb = "Taree";
suburbID = "zmw:00000.1.95784.xml";

if (suburb.Contains("port macquarie")
{
    suburb = "Port Macquarie";
    suburbID = "zmw:00000.1.94787.xml";
}


您也可以只指定默认值作为开始，然后仅在找到匹配项时覆盖默认值，如下所示：

if (suburb.Contains("taree"))
{
   suburb = "Taree";
   suburbID = "zmw:00000.1.95784.xml";
}
else if (suburb.Contains("port macquarie"))
{
   suburb = "Port Macquarie";
   suburbID = "zmw:00000.1.94787.xml";
}
else {
  suburb = "default";
}

if (suburb.Contains("taree"))
{ 
    suburb = "Taree";
    suburbID = "zmw:00000.1.95784.xml";
}
else if (suburb.Contains("port macquarie"))
{
    suburb = "Port Macquarie";
    suburbID = "zmw:00000.1.94787.xml";
}
else
{
    suburb = "Taree";
    suburbID = "zmw:00000.1.95784.xml";
}

// Default values
suburb = "Taree";
suburbID = "zmw:00000.1.95784.xml";

if (suburb.Contains("port macquarie")
{
    suburb = "Port Macquarie";
    suburbID = "zmw:00000.1.94787.xml";
}

注意：对于您发布的示例代码，这将您的逻辑简化为单个
if
。这还消除了第一个
if
和
else
中的重复逻辑

开关
/
案例
语句？听起来像是组合框
会更好。比我快100毫秒：P@SimonWhitehead只是因为我可能会先看这个问题：）谢谢。这是完美的工作，是好的和简单的。我整天都在玩代码，所以有一种方法让我不知所措。我认为第二种方法的想法是正确的，但您必须稍微修改一下，我们必须先复制
郊区的
（在使用默认的
“Taree”
分配它之前），在
else if
中使用该副本，如果条件为
true
，则更新
郊区
，这样我们就不需要最后一个
else
。但是OP alread中传递了一个名为
suburbFromForm1
的参数，因此我们可以在
else if
中使用该权限，而无需复制郊区