如何return结构数组在solidity智能合约中形成一个函数

Question

我想 return 来自函数 getPurchaseOrderForVendor 的结构数组。编译时出现错误 invoiceSettlement.sol:44:80: ParserError: Expected type name 函数 getPurchaseOrderForVendor(string vendorNameInput) 常量 ret 骨灰盒（结构[]） ^

pragma solidity ^0.4.21;
pragma experimental ABIEncoderV2;

contract InvoiceSettlement {

struct PurchaseOrderStruct {

    uint8 requisitionNumber;
    uint8 poNumber;

}

PurchaseOrderStruct[10] public PurchaseOrderStructArray;


function InvoiceSettlement()
{
        for (uint i = 0; i < purchaseOrderLength; i++) {

                PurchaseOrderStructArray[i].requisitionNumber = 1;
                PurchaseOrderStructArray[i].poNumber = 1;

        }
}


function  getPurchaseOrderForVendor(string vendorNameInput) constant returns (struct[])
{


    struct[] memory y = new struct[](16);

    for (uint i = 0; i < purchaseOrderLength; i++)
    {
        y[i] = PurchaseOrderStructArray[i];
    }
    return (y);

}


}

Answer 1

这份合同中有不止一个错误，但不知道你想达到什么目的，我就回答这个问题

应该是这样的

function getPurchaseOrderForVendor(string vendorNameInput) constant returns (PurchaseOrderStruct[])

如何return结构数组在solidity智能合约中形成一个函数

How to return array of struct form a function in solidity smart contract

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