如何原生转换字符串 - > base64和base64 - > 字符串
我发现只有这个字节到base64string
我想这样:
String Base64String.encode();
String Base64String.decode();
或者从另一种语言移植更容易？
我在尝试进行pub更新以获取web_ui安装包时收到以下错误.
Dart编辑器版本: 0.2.10_r16761
Dart SDK版本: 0.2.10.1_r16761
这"Help > About > Check for Update..."也给了我"Unable to get latest revision".这可能是代理问题吗？
是否有手动方式添加包,例如下载包并将其放在某处？
Running pub update ...
Pub update failed, [1] Resolving dependencies...
Got socket error trying to find package "web_ui" at http://pub.dartlang.org.
OS Error: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
, errno = 10060
在dart-web-components上运行pub install会出错:
Pub install fail, HttpParserException: Connection closed before full header was received
/dart-web-components/build.dart --changed=packages\args\args.dart --changed=packages\args\src\utils.dart --changed=packages\logging\...
Failed with error code 255
Unable to open file: C:/dartapps/dart-web-components/packages/web_components/component_build.dart'file:///C:/dartapps/dart-web-components/build.dart': Error: line 8 pos 1: library handler failed
import'package:web_components/component_build.dart'; ^
在build.dart文件中有一个字符串
import 'package:web_components/component_build.dart';
编辑器显示错误
Cannot find referenced source: package:web_components/component_build.dart
component_build.dart包含错误
Cannot find referenced source: package:args/args.dart
Cannot find referenced source: package:web_components/dwc.dart
更新到Dart SDK和Dart编辑器的0.3.1_r17328版本后,我在导入一些特殊的库Args库时遇到了一些麻烦.我有同样的问题,直接导入Args或导入Web_ui,其中Args是依赖项之一.
这是我的pubspec.yaml:
name: notes
description: A sample application
dependencies:
web_ui: 0.3.0+1
要么:
name: notes
description: A sample application
dependencies:
args: 0.3.1+1
这是从build.dart生成的错误
Unable to open file: C:/Users/Fabio/Dropbox/progetti/note/packages/args/args.dart'package:web_ui/component_build.dart': Error: line 25 pos 1: library handler failed
import 'package:args/args.dart';
'file:///C:/Users/Fabio/Dropbox/progetti/note/build.dart': Error: line 1 pos 1: library handler failed
import 'package:web_ui/component_build.dart';