如何在Golang中将数字（int或float64）转换为字符串

How do I convert any given number which can be a int or float64 to string ?

Using strconv.FormatFloat or FormatInt I have to specify that the given number is a float or integer. In my case it is unknown what I get.

Behaviour:

5"5""5.00"

1.23"1.23""1"