solidity智能合约[13]-固定字节数组转动态字节数组

固定字节数组转动态字节数组

要将固定长度的字节数组转换为动态长度的字节数组,需要首先创建动态数组,并挨个赋值。

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pragma solidity ^0.4.23;

contract fixTodynamic{
bytes6 name = 0x6a6f6e736f6e;

function Todynamic() view public returns(bytes){
//return bytes(name);
bytes memory newName = new bytes(name.length);

//for循环挨个赋值
for(uint i = 0;i<name.length;i++){
newName[i] = name[i];
}
return newName;
}
}