期权合约 写在Rust-因为生锈。 使用“构建选项。 let option_input = OptionBuilder :: new () . kind (Type :: Call) . direction (Direction :: Long) . strike ( 10.0 ) . price ( 1.0 ) . finish (); 根据当前市场价格执行期权 let current_price = 20.0 ; let result = ex