package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)^([1-9]\d*|0)\.(\d*[1-9]+)$`)
var str = `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`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
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 Golang, please visit: https://golang.org/pkg/regexp/