📅  最后修改于: 2022-03-11 15:04:35.455000             🧑  作者: Mango
fn main() {
let do_steps = || -> Result<(), MyError> {
do_step_1()?;
do_step_2()?;
do_step_3()?;
Ok(())
};
if let Err(_err) = do_steps() {
println!("Failed to perform necessary steps");
}
}