我想知道在继承的情况下,谁仍然能够调用原始的覆盖函数。
让我们假设我有以下设置:
contract A{
address public owner;
function A(){
owner = msg.sender;
}
function doSomething(){
// does something
}
}
contract B is A{
function doSomething(){
require(msg.sender == owner);
// do something like A
我试图用苹果的脚本发送电子邮件。一切正常,甚至电子邮件被发送到脚本中使用的地址。我的问题是我无法在电子邮件内容中添加签名。这是代码
tell application "Mail"
set theSubject to "Subject if the testing email" -- the subject
set theContent to "Body of the email goes here" -- the content
set theAddress to "test123@gmail.com" -
我有两个合同地址,我想在一次电话中检查这两个事件。我的意思是,我们能不能像下面一样,在一个选项中传递两个合同地址?
let web3 = new Web3();
web3.setProvider(web3Provider);
let options = {
fromBlock:'latest',
toBlock: 'latest',
address: ADDRESS1,Address2
};
let filter = web3.eth.filter(options);
filter.watch(function(error, result){
c