float数据类型转换

Question

我想把取出来的float数据类型只保留小数点后两位，该如何做呢

Answer 1

float x = 3.22232f;
x = System.Math.Round(x, 2);

Answer 2

float x = 3.22232f;
x = (float)System.Math.Round(x, 2);

Answer 3

float number=123.4567f;
number.ToString(".##");//四舍五入

Answer 4

float x = 3.22232f;
Console.WriteLine("{0:f2}",x);

Answer 5

float number=123.4567f;
string value=number.ToString("F2");

Answer 6

double dubA = 100.7523450F;
double dubB = dubB * 100;
int intC = Convert.toInt32(dubB);
dubA = Convert.toDouble(intC)/100.0F;