C#：PointF() 数组初始值设定项
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C#: PointF() Array Initializer
提问by Agnel Kurian
I need to hard code an array of points in my C# program. The C-style initializer did not work.
我需要在我的 C# 程序中硬编码一组点。C 风格的初始值设定项不起作用。
PointF[] points = new PointF{
/* what goes here? */
};
How is it done?
它是如何完成的？
采纳答案by Davy Landman
Like this:
像这样：
PointF[] points = new PointF[]{
new PointF(0,0), new PointF(1,1)
};
In c# 3.0 you can write it even shorter:
在 c# 3.0 中，你可以写得更短：
PointF[] points = {
new PointF(0,0), new PointF(1,1)
};
updateGuffa pointed out that I was to short with the var points, it's indeed not possible to "implicitly typed variable with an array initializer".
更新Guffa 指出我要缩短 ，var points确实不可能“使用数组初始值设定项隐式输入变量”。
回答by i_am_jorf
You need to instantiate each PointF with new.
您需要使用 new 实例化每个 PointF。
Something like
就像是
Pointf[] points = { new PointF(0,0), new PointF(1,1), etc...
Pointf[] points = { new PointF(0,0), new PointF(1,1), 等等...
Syntax may not be 100% here... I'm reaching back to when I last had to do it years ago.
语法在这里可能不是 100% ......我回到几年前我最后一次不得不这样做的时候。
回答by Peter McG
PointF[] points = new PointF[]
{
new PointF( 1.0f, 1.0f),
new PointF( 5.0f, 5.0f)
};
回答by Guffa
For C# 3:
对于 C# 3：
PointF[] points = {
new PointF(1f, 1f),
new PointF(2f, 2f)
};
For C# 2 (and 1):
对于 C# 2（和 1）：
PointF[] points = new PointF[] {
new PointF(1f, 1f),
new PointF(2f, 2f)
};
