// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
let regex = Regex::new(r"(?m)^([1-9]\d*|0)\.(\d*[1-9]+)$").unwrap();
let string = "小数点左侧条件1：[1-9]开头的数字后面可以是任何数量的数字
小数点左侧条件2：只有一个0
小数点右侧条件1：任意数量的数字，并且结尾必须是[1-9]
1
1.
1.0
1.10
01.1
01.01
01.10
2.1
2.20
2.01
2.020
3.105
3.01205
2.005
0.02";
// result will be an iterator over tuples containing the start and end indices for each match in the string
let result = regex.captures_iter(string);
for mat in result {
println!("{:?}", mat);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/