use std::io::stdin;
pub fn is_empty(val: &str) -> bool {
val.trim().len() == 0
}
pub fn del_start_separator(path: &str) -> &str {
if path.starts_with(std::path::MAIN_SEPARATOR) {
return &path[1..];
}
path
}
pub fn read_console() -> String {
let mut v: String = String::new();
stdin().read_line(&mut v).expect("read_line error!");
String::from(v.trim())
}