1，下面是一个浮点类型的数字转成String字符串的例子
|
1
2
|
var
f = 123.32342342
var
s:
String
=
"\(f)"
//123.32342342
|
2，如果要保留两位小数
|
1
2
|
var
f = 123.32342342
var
s =
String
(format:
"%.2f"
, f)
//123.32
|