formatDoubleComma3 static method
每隔3三位加逗号 num 数字或数字字符串。double型。
Implementation
static String formatDoubleComma3(Object num,
{int digit = 3, String pattern = ','}) {
List<String> list = num.toString().split('.');
String left =
formatDigitPatternEnd(list[0], digit: digit, pattern: pattern);
String right = list[1];
return '$left.$right';
}