方法作为参数
dada
dada
2019-03-22
void main(List args){
var list = ["wo", "kao", "1", "20.5"];
var result = listTime3(list, times3);
print(result);
}
listTime3(List list,String times3(String item)){
for (var index = 0; index < list.length; index ++){
list[index] = times3(list[index]);
}
return list;
}
String times3(String item) {
return item*3;
}举报