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JS智能合同ECR-20批准传递函数不工作

I tried to do approve + transferFrom function in ERC-20 with web3js I got error focus find below function at contract.methods.approve it not working it seem to be I miss something . or anyone

用JavaScript获取Hmac

Im working with an api, ive never done this before with javascript. So i'm kind of new to this. They gave me an example code of how i can generate an Hmac key which i need to connect to the api

烧瓶服务器的自动化测试

I'm really new in Stack Overflow (and coding in general for that matter). Our final assignment for our Web Programming period in college is to make a Flask server which will recover info from the

MAPBOX用ReACTJS调整大小(到达这个.map)

I am new to using Mapbox with ReactJS (and still pretty new to ReactJS) but I am building 2 maps on 2 tabs in a ReactJS app. The first one renders perfect but when I click the tab, the next maps shows

邮政不

I have an web application and I'm trying to creat a simple POSt method that will have a value inside the body request: @RequestMapping(value = "/cachettl", method = RequestMethod.POST) @CrossOrigin(

如何在外部表预处理器命令中传递路径作为n个参数到shell脚本

I am trying to create a external preprocessor table using below method : CREATE TABLE files_from_CODA ( fname VARCHAR2(255) ) ORGANIZATION EXTERNAL ( TYPE ORACLE_LOADER

I'm getting a few exceptions from my desktop application that is wrapped using launch4j about running of memory. Specifically: OutOfMemoryError: Java heap space Since I don't know how much RAM is in

MySQL查询使用Java太长

I have three mysql tables: Customer Complaint Recovery Problem statement: I have 50000+ customers, I want to search a customer against whom there's recovery request. The problem is pretty solved,

尝试在调用头文本之前添加默认文本来显示

Trying to add default text (LEARN MORE:) in same h5 heading just before the called get_the_title hook. what shows now example: MLS# T3110937 9313 MANDRAKE CT, TAMPA, FL 33647 Example of adding LEARN

为什么文件在多件上传过程中被损坏成在AWSλ中运行的Express?

Have a SPA with a redux client and an express webapi. One of the use cases is to upload a single file from the browser to the express server. Express is using the multer middleware to decode the file

JavaMoney:设置CurrnyyType没有编译时间依赖于Muneta

I'm trying to create a MonetaryAmountFormat that uses the currency unit symbol: MonetaryAmountFormat format = MonetaryFormats.getAmountFormat( AmountFormatQueryBuilder.of(Locale.GERMANY)

构建失败:CAN

Whenever I try to build & run my Unity application for android I receive the following error: Build Failure: Unable to list target platforms. please make sure the android sdk path is correct.

Gradle:依赖相容性

How can I ensure with gradle, that all my dependencies are compatible with Java version I use in my project? Eg. I compile my project with JDK 1.6 and one of my dependencies is compiled with JDK 1.8.

WebLogic 12C展开误差弹簧

I am getting below errors while I deploy spring project in Weblogic 12c

当脸谱网管理页面并发布行动应用程序审查批准时

We have created new app in facebook developer ac`count to post in timeline and display timeline details. `While doing this process we have been requested to uplaod screencast video and app review

如何使用ReIDIS序列化Java即时类型

I'm using spring boot 2.0.3 and spring-boot-starter-data-redis. Also using jackson-datatype-jsro310. I want to store Object into redis. the object(MyObj): String text; Instant instant; Here's my

有没有办法在Oracle中隐藏表

Is there any way to hide a table in toad editor. It will work for me too if I only could hide from the schema browser.

为什么Git的单键设置不起作用?

I’m using Git 2.7.4. I have the following snippet in my ~/.config/git/config file: [interactive] singleKey = true However, when I run git add -p I still have to press enter after having made a

如何用JavaScript中的模型值动态改变谷歌地图标记

im showing one blue marker while voltage is not 0 , i want to show marker as red marker while voltage is 0. if @Model.RVoltage==0 or @Model.YVoltage==0 or @Model.BVoltage == 0 then marker icon should

颤动CydidFixStury:如何将文档从一个集合添加到DROPUDOWN按钮中?

Here's the code I have for my DropdownButton currently: new StreamBuilder<QuerySnapshot>( stream: Firestore.instance.collection("Teams").snapshots(), builder: (context,

Python 2.7 -下载大文件有问题

I'm trying to download some decently large files in python 2.7 (between 300 and 700 MB each), and I'm running into the problem of the connection getting reset in the middle of retrieving the files.

理解百灵鸟语法中什么构成歧义

I was trying to simplifying the case presented in another question and got to the following parsing attempt using lark: from lark.lark import Lark text = """ start_thing { loc int { from 0,

Azure IOT中心可视化

In azure IoT central, there are 3 modes of visualization: 1) Stacked 2) Unstacked 3) Shared I understood stacked but what is the use for Unstacked and Shared ? What is meant by this "A graph for

C值组合框在添加值后没有响应

I am trying to add items to a combobox from an ftp server and then based on the value selected use that to populate other comboboxes. This works for only two of my values. this is the code for added

从用户获取图表

I want to implement dijkstra algorithm in java. First I get the graph from user & save it in a Matrix like this: System.out.println("Enter Number of Nodes: "); int noOfNodes = scan.nextInt();

405不允许使用RESSTAY和AJAX的方法

I am facing an issue while login . Registration is working fine. Tech stack - HTML/AJAX/JQuery->Resteasy (Wildfly 10.1.0 Final) I have the url - https://www.test.com/login - (actual URL name is

BigQu疑问,联合发布/错误:语法错误:预期关键字全部或关键字不同但在[16:3]中得到关键字选择

Currently, I'm trying to connect 4 tables together and display only 5 columns and union them all to one table. This is the query: SELECT id, platform, url, profileImageUrl, name FROM (

VS代码Python扩展最近开始抱怨Win 10上的路径错误

When I start VS Code on a python file I started getting this error The environment variable 'Path' seems to have some paths containing characters (';', '"' or ';;'). The existence of such

引导4.1字幕标题不

This is the code. But the caurosel caption part doesn't visible in small device. Should I use any media query for making it visible. This is the code. But the caurosel caption part doesn't visible in

从网络外部访问站点时,IIS网站路径的行为不同

As the title states, I get different behavior on my website when I try to access it from the internet, as opposed to accessing it from the local network, and I cannot figure out why. I know it is

许诺承诺不解决或拒绝的VUEX行动

I'm trying to build up my API service in my VueJS application by using Vuex. I'm in the process of refactoring some stuff to centralize error handling, clean-up, etc. The issue I'm running into is

HTML包含文件组件不工作

I have a TABBED view that includes a html(containing a canvas). There is a listener on this canvas that tracks the mouse movements. It all works fine on the first tab but when I click the second tab

在U$会话中存储用户类型

When I log in I'm trying to store the user type (if it is Admin or not) to disable some buttons on other pages if the user isn't an admin on an $_Session but as I'm kind of new with PHP i can't figure

对于XML到JSON转换,我应该创建什么样的单元测试?

Given XML, I need to create JSON modeled after that XML. So I need to create unit tests for this. Does anyone know what are the things to test for this sort of thing? Or I shouldn't overthink it and

SPSS:如何从两个独立变量中创建4个条件

I have a question about spss. I have two independent variables with both two levels, which combined represent 4 conditions. I was wondering how i can the four different conditions out of the two

Date Picker在自动化的任何地方

Actually I'm working on a task where I have all my data in excel sheet and need to post the same data in website Since the data in website is in dropdown form. so I'm unable to post the excel date in

为.NET应用程序创建日志记录类

I am trying to create a logger class for a .Net application, where the error log saves to the db. To separate Data access, we have DAL Layer, where I have written function to insert error data to db.

画外音正在寻找附近可读取的元素?

I'm adding accessibility to my iOS app. I'm seeing a specific situation that when I tap on a UIView that has isAccessibilityElement = false, and all of its ancestor views are also

加密算法在智能合同中的应用

I am new to Block chain development.I am now trying to write a smart contract in Hyperledger Composer. My smart contract should do this function. It should access a file on the cloud and run an

如何处理Java Web中的请求?

I'm new to Java web. I'm wondering how I can do the processing of applications. I have here such an application: enter image description here I want that by clicking on checkbox + "Accept application"

硒Python:DeleTeE.AlLookCookes()不删除存储的所有Cookie

There is this website : http://justnotepad.com/ Here we can write notes and it will store it in browser's storage so if we reload/reopen the page again it restores the previous notes. So I want to

用变量运行IFOR语句

I am trying to run an ifelse statement with a by group and cannot see how to do it in R. For example if I have ID ORDER 1 1 2 1 3 1 3 2 3 3 6 1 7 1 7 2 I want to create a column

当操作布尔搜索时,显示出意外错误。

The problems is in the picture. Can anyone tell me what is wrong with my operation? Thanks! enter image description hereenter image description here

如何显示另一个联系人号码到第二个人隐藏两个人的真实号码在通话中从我的网站按钮点击

I saw on the indiamart websites buyers call to the seller it does not show the real number to each other after the call ends some text message to both people that's an example, calling from my website

我能保护HTML输入代码吗?

Do you know Asp.NET __VIEWSTATE? Is a system like __VIEWSTATE available in html or php? I want this in html or php : input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="rdpm2JpiCj9+

WIX-搜索安装中的密钥

My wix code is looking as follow : <!-- CC 2017 = Version 110.0 --> <Property Id="ISCC2017EXISTX64"> <RegistrySearch Id="IsCC2017Existx64" Root="HKLM" Key="Software\Adobe\Photoshop\

为什么当异常抛出时,Scala中的原子块会运行两次?

Code: object Blub { import scala.concurrent.stm._ val last = Ref("none") def bla() = atomic { implicit txn => last() = "outer" try { atomic { implicit txn => last()

在Explorer和Firefox上传递会话变量不工作

My site works on Chrome fine using Sessions to pass variables from one page to another but when using Firefox and Internet Explorer the variable 'Name' does not pass over at all. 1st Page <input

从表中自动刷新AngularJS中的新文档值

So I'm working on a project where there's a table of different instances of our service and each row has a info button that pulls up a form with info from the row autofilled into it. The problem: By

安装扩展

When I click on 'browse market place' for our production TFS server, it directly links to our VSTS account. If I then try to install the Sonarqube extension I only have the option to get it. I can

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