C＃，将整数和字符串连接成var

Question

如何将整数和字符串连接到var？

int a; int x=2; int y=7200;
a=x*y;
var B=a+"D"; // How to concatenate this to turn it 14400D
// I need use this in the code that changes the AxisX.LabelStyle.Interval.
// We can not use string concatenation here.
chart1.ChartAreas[0].AxisX.LabelStyle.Interval=B;

Answer 1

通过查看您的代码。我认为你似乎需要这个代码。？

int a; int x = 2; int y = 7200;
a = x * y;
var B = a.ToString() + "D"; 
chart1.ChartAreas[0].AxisX.LabelStyle.Interval = B;

OR

int a; int x = 2; int y = 7200;
a = x * y;
String aValue = a.ToString() + "D";
var B = aValue;
chart1.ChartAreas[0].AxisX.LabelStyle.Interval = B;

如果您的要求正确，那么我会先建议。

Answer 2

.Interval需要一倍，你能不能将int转换为双倍？

chart1.ChartAreas[0].AxisX.LabelStyle.Interval = Convert.toDouble(a);

• Interval method
• toDouble

Answer 3

而不是int a;写double a;和：

chart1.ChartAreas[0].AxisX.LabelStyle.Interval = a;