给定以UTF-16LE编码的Elixir位串：
<<68, 0, 101, 0, 118, 0, 97, 0, 115, 0, 116, 0, 97, 0, 116, 0, 111, 0, 114, 0, 0, 0>>
如何将其转换为可读的Elixir String（它拼写出“Devastator”）？我最接近的是将上面的内容转换为Unicode代码点列表（["0044", "0065", ...]）并尝试将\u转义序列添加到它们之前，但Elixir会抛出错误，因为它是一个无效的序列。我没有想法。
答案 0 :(得分：4)
最简单的方法是使用:unicode模块中的函数：
/// <reference path="../jquery-3.1.0.intellisense.js" />
var ProjectModel = function (project) {
var self = this;
self.Id = ko.observable(project ? project.Id : 0);
self.CustumerCompany = ko.observable(project ? project.CustumerCompany : "");
self.CustomerRepresentative = ko.observable(project ? project.CustomerRepresentative : "");
self.ProjectTitle = ko.observable(project ? project.ProjectTitle : "");
self.WWSNumber = ko.observable(project ? project.WWSNumber : "");
self.AqStatus = ko.observable(project ? project.AqStatus : "");
self.Completed = ko.observable(project ? project.Completed : "");
self.StartDate = ko.observable(project ? project.StartDate : "");
self.EndDate = ko.observable(project ? project.EndDate : "");
self.ProjectLeader = ko.observable(project ? project.ProjectLeader : "");
self.Deputy = ko.observable(project ? project.Deputy : "");
self.SalesConsultant = ko.observable(project ? project.SalesConsultant : "");
self.Service = ko.observableArray(project ? project.Service : []);
};
// #endregion
// #region Project Service Model
var ProjectServiceModel = function (projectService) {
var self = this;
self.Id = ko.observable(projectService ? projectService.Id : 0);
self.Number = ko.observable(projectService ? projectService.Number : "");
self.Name = ko.observable(projectService ? projectService.Name : "");
self.Positions = ko.observableArray(projectService ? projectService.Positions : []);
self.isEditing = ko.observable(true);
self.isActive = ko.observable(false);
self.countSelf = ko.computed(function () {
if (self.Positions().length > 0) {
return true;
}
else {
return false;
}
},
self);
};
// #endregion
// #region Position Model
var ServicePositionModel = function (servicePosition) {
var self = this;
self.Id = ko.observable(servicePosition ? servicePosition.Id : 0);
self.Number = ko.observable(servicePosition ? servicePosition.Number : "");
self.Name = ko.observable(servicePosition ? servicePosition.Name : "");
self.PerformanceGroup = ko.observable(servicePosition ? servicePosition.PerformanceGroup : "");
self.PerformanceGroupPrice = ko.observable(servicePosition ? servicePosition.PerformanceGroupPrice : "");
self.Remarks = ko.observable(servicePosition ? servicePosition.Remarks : "");
self.isEditing = ko.observable(servicePosition ? servicePosition.isEditing : false);
self.isActive = ko.observable(false);
};
// #endregion
var ProjectViewModel = function () {
var self = this;
self.project = ko.observable(new ProjectModel());
self.projectServices = ko.observableArray([]);
// #region InitData
self.selectedPerformanceGroup = ko.observableArray([]);
self.AqStatusTypeData = ko.observableArray([]);
self.PerformanceGroupTypeData = ko.observableArray([]);
$.ajax({
url: "/LeistungManager/InitializeData",
dataType: "json",
success: function (json) {
self.AqStatusTypeData(json.AqStatusType);
self.PerformanceGroupTypeData(json.PerformanceGroupType);
}
});
self.testOptions = function () {
self.selectedPerformanceGroup;
debugger;
}
// #endregion
// #region Service Functions
self.addService = function () {
var object = new Object();
object.isEditing = true;
self.projectServices.push(new ProjectServiceModel(object));
self.isServiceSelected(false);
};
self.saveService = function (projectService) {
projectService.isEditing(false);
};
self.editService = function (projectService) {
projectService.isEditing(true);
};
self.removeService = function (projectService) {
self.projectServices.remove(projectService);
};
self.isServiceSelected = ko.observable(false);
self.selectedServiceData = ko.observable(new Object());
self.selectService = function (serviceRowData) {
if (!serviceRowData.isEditing()) {
self.isServiceSelected(true);
serviceRowData.isActive(true);
self.selectedServiceData(serviceRowData);
}
};
// #endregion
// #region Position Functions
self.addPosition = function () {
var object = new Object();
object.isEditing = true;
self.selectedServiceData().Positions.push(new ServicePositionModel(object));
};
self.savePosition = function (servicePosition) {
servicePosition.isEditing(false);
};
self.editPosition = function (servicePosition) {
servicePosition.isEditing(true);
};
self.removePosition = function (servicePosition) {
self.selectedServiceData().Positions.remove(servicePosition);
};
self.isPositionSelected = ko.observable(false);
self.selectedPositionData = ko.observable(ServicePositionModel(new Object()));
self.selectPosition = function (positionRowData) {
if (!positionRowData.isEditing()) {
self.isPositionSelected(true);
positionRowData.isActive(true);
self.selectedPositionData(positionRowData);
}
};
// #endregion
self.saveProject = function () {
self.project().Service = self.projectServices;
self.project().Service().Positions = self.servicePositions;
var token = $('[name=__RequestVerificationToken]').val();
$.ajax({
type: "POST",
url: "/LeistungManager/CreateProject",
data: { __RequestVerificationToken: token, model: ko.toJS(self.project()) },
dataType: "json",
cache: false,
async: true,
success: function (response) {
},
complete: function (response) {
console.log(response);
}
});
};
};
ko.applyBindings(new ProjectViewModel());例如
:unicode.characters_to_binary(utf16binary, {:utf16, :little})
（最后有一个空字节，因此二进制显示而不是字符串将在shell中使用，并且根据操作系统，它可能会为空字节打印一些额外的表示）
答案 1 :(得分：1)
您可以使用Elixir的模式匹配，特别是<<codepoint::utf16-little>>：
defmodule Convert do
def utf16le_to_utf8(binary), do: utf16le_to_utf8(binary, "")
defp utf16le_to_utf8(<<codepoint::utf16-little, rest::binary>>, acc) do
utf16le_to_utf8(rest, <<acc::binary, codepoint::utf8>>)
end
defp utf16le_to_utf8("", acc), do: acc
end
<<68, 0, 101, 0, 118, 0, 97, 0, 115, 0, 116, 0, 97, 0, 116, 0, 111, 0, 114, 0, 0, 0>>
|> Convert.utf16le_to_utf8
|> IO.puts
<<192, 3, 114, 0, 178, 0>>
|> Convert.utf16le_to_utf8
|> IO.puts
输出：
Devastator
πr²