Solidity string to uint


oraclize result以string格式返回,solidity沒有uint(string)這樣的強制轉換功能,如果要解析其中的數字,可以用oraclize提供的parseInt方法:

 

pragma solidity ^0.4.21;

import "github.com/oraclize/ethereum-api/oraclizeAPI.sol";

contract StringToUint is usingOraclize{
    string price = "110.42";
    string realStringPrice = "$10.33";
    string badString = "abc";
    uint public priceInt = parseInt(price,2); //11042
    uint public priceIntger = parseInt(price); // 110
    uint public realStringPriceInt = parseInt(realStringPrice,2); //1033
    uint public realStringPriceInteger = parseInt(realStringPrice); //10
    uint public badStringInt = parseInt(badString); //0
    uint public badStringInteger = parseInt(badString,2);   //0 
}

 


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