CharacterRange.Equality(CharacterRange, CharacterRange) 操作员
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
比较两个 CharacterRange 对象。 获取一个值,该值指示两First个对象的和Length值是否CharacterRange相等。
public:
static bool operator ==(System::Drawing::CharacterRange cr1, System::Drawing::CharacterRange cr2);
public static bool operator ==(System.Drawing.CharacterRange cr1, System.Drawing.CharacterRange cr2);
static member ( = ) : System.Drawing.CharacterRange * System.Drawing.CharacterRange -> bool
Public Shared Operator == (cr1 As CharacterRange, cr2 As CharacterRange) As Boolean
参数
- cr1
- CharacterRange
要比较相等的 A CharacterRange 。
- cr2
- CharacterRange
要比较相等的 A CharacterRange 。
返回
示例
以下示例演示如何使用 Equality 运算符。 若要运行此示例,请将其粘贴到 Windows 窗体中。 处理表单 Paint 的事件,并从事件处理方法调用 CharacterRangeEquality1 该方法 Paint ,并传递 e 为 PaintEventArgs。
private void CharacterRangeEquality1()
{
// Declare the string to draw.
string message = "Strings or strings; that is the question.";
// Compare the ranges for equality. The should not be equal.
CharacterRange range1 =
new CharacterRange(message.IndexOf("Strings"), "Strings".Length);
CharacterRange range2 =
new CharacterRange(message.IndexOf("strings"), "strings".Length);
if (range1 == range2)
MessageBox.Show("The ranges are equal.");
else
MessageBox.Show("The ranges are not equal.");
}
Private Sub CharacterRangeEquality1()
' Declare the string to draw.
Dim message As String = "Strings or strings; that is the question."
' Compare the ranges for equality. The should not be equal.
Dim range1 As New CharacterRange(message.IndexOf("Strings"), _
"Strings".Length)
Dim range2 As New CharacterRange(message.IndexOf("strings"), _
"strings".Length)
If range1 = range2 Then
MessageBox.Show("The ranges are equal.")
Else
MessageBox.Show("The ranges are not equal.")
End If
End Sub
注解
还可以使用 Equals 该方法测试是否相等。
此运算符的等效方法为 CharacterRange.Equals(Object)