kkmToM method
km 转 m
Implementation
String kkmToM({NumFormat format = NumFormat.longDef}) {
var file = this;
if (file == null) {
return "";
} else {
if (file < 0.000001) {
return "${file.kmulti(1000)}m";
} else {
return "${file.kmulti(1000).kformatStr(format: format)}m";
}
}
}