Macro develop_debug::dd_____var

macro_rules! dd_____var {
    ($($var:expr),*) => { ... };
}

Shortcut to develop_debug!(var expr)

The develop_debug! has been ignored. Configuration Cargo.toml, switch debugging;

    [dependencies.develop_debug]
    path = "../develop_debug"
    features = ["debug"] # Control switch debugging.

debug enable use features = ["debug"];

debug ignore use features = [] or delete this line;