C# 格式浮点数显示小数点前后2位

Question

I have a time board and want to show time as 01:24 for example. My current code:

timeInGame.ToString("F2").Replace(".",":");

This code returns 1:24.

Answer 1

Specify the format explicitly:

timeInGame.ToString("00.00").Replace(".",":");

Note however that it is incorrect to pretend that decimal numbers map to minutes:seconds or hours:minutes, eg 1.5 == 1:30.