Double string.format

问题

I have some double values I want to convert to a string with this pattern:

0.xx or x.xx

Currently I have try this:

double.ToString("#.#0");

What should I add in order to see zero in case my number start with zero?

回答1:

just use

myDouble.ToString("0.00")

that should do the trick

回答2:

myDouble.ToString("N2")

should also work.

Have a look at

MSDN: Custom Numeric Format Strings

MSDN: Standard Numeric Format Strings

回答3:

String.Format("{0:0.00}", 111.0);

回答4:

Put a zero in front of the decimal separator:

double.ToString("0.#0");

This will always include the digit, in contrast to # which makes it optional.

回答5:

use following :

myDouble.ToString("N2")

来源：https://stackoverflow.com/questions/9869346/double-string-format