package main
import (
"fmt"
"log"
"regexp"
)
func TestZ_1() {
str := "Hello ${world}, this is ${golang}"
re := regexp.MustCompile(`\${(.+?)\}`)
// 查到匹配的字符串下标
matches_index := re.FindAllStringIndex(str, -1)
log.Println(matches_index)
//查到匹配的字符串
log.Println(re.FindAllString(str, -1))
//查到匹配的字符串以及子字符串
log.Println(re.FindAllStringSubmatch(str, -1))
//把匹配到的字符串替换成指定的串
log.Println(re.ReplaceAllString(str, "%s"))
str_replace := re.ReplaceAllString(str, "%s")
mathc_all := re.FindAllStringSubmatch(str, -1)
// 参数准备并替换尝试
math_list := make([]interface{}, 0)
for _, match := range mathc_all {
math_list = append(math_list, match[1])
}
log.Println(math_list, len(math_list))
for i := 0; i < len(math_list); i++ {
log.Println("匹配到", math_list[i])
}
log.Println("待替换的字符串 ", str_replace)
log.Println("替换后的数据", fmt.Sprintf(str_replace, math_list...))
}
func main() {
TestZ_1()
}
执行结果
2023/04/22 21:13:00 [[6 14] [24 33]]
2023/04/22 21:13:00 [${world} ${golang}]
2023/04/22 21:13:00 [[${world} world] [${golang} golang]]
2023/04/22 21:13:00 Hello %s, this is %s
2023/04/22 21:13:00 [world golang] 2
2023/04/22 21:13:00 匹配到 world
2023/04/22 21:13:00 匹配到 golang
2023/04/22 21:13:00 待替换的字符串 Hello %s, this is %s
2023/04/22 21:13:00 替换后的数据 Hello world, this is golang
参考：https://cloud.tencent.com/developer/article/1706173
