基本上,我有这样的代码,在这个代码中,我试图将特定数量的以太分解为契约中的两个不同的函数调用。function singleTransaction(arg1) payable { require(msg.value == 1 ether); buy.value(msg.value /not found or not visible after argument-dependent lookup in function (uint256) - did you forget the "payable