c# - MVC 中的 string.format 问题

Question

 var amount="0";
 @String.Format("{0:0.00}", amount)

返回"0"

虽然我期待它回来

"0.00"

Answer 1

Formatting a string will just return the string itself, you have to format a number to get it formatted as a number:

var amount = 0;

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A variable with implicit type which is assigned an integer value will be an integer, so it won't have a fractional part. You might want to specify the type:

double amount = 0;

Or use a double value:

var amount = 0.0;

Answer 2

Try:

String.Format("{0:#.##}", amount)

OR

String.Format("{0:N2}", amount)

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Scratch this - Guffa's answer is correct...

Answer 3

尝试这个

.ToString("N2") 

它将使用 CultureInfo 来格式化数字。这意味着您的千位分隔符可能会有所不同，具体取决于使用的 CultureInfo。如果需要，您还可以传递所需的 CultureInfo。