formatMoney static method
每隔3三位加逗号
num
数字
Implementation
static String formatMoney(
double num, {
int digit = 3,
String pattern = ',',
}) {
List<String> list = num.toString().split('.');
String left = formatDigitPattern(list[0], digit, pattern, end: true);
String right = list[1];
return '$left.$right';
}