原始字符串：
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-----BEGIN LICENSE KEY-----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\nnQDUcLqDQ6x3CCeCVFL+KW5SfVrqwelSaZaeogkHX3RftdIVHhltCwegAA==\n-----END LICENSE KEY-----
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直接使用\n
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license := `-----BEGIN LICENSE KEY-----\nL/+HAwEBB2xpY2Vuc2UB/4gAAQIBB1BheWxvYWQBCgABCVNpZ25hdHVyZQEKAAAA\n/gPo/4gB/gHd/7AQABpsaWNlbnNlLW1nci9jb25maWcuUGF5bG9hZP+BAwEBB1Bh\neWxvYWQB/4IAAQoBBUFwcElkAQwAAQZBcHBLZXkBDAABCVN0YXJ0VGltZQEMAAEE\nRGF5cwEEAAEGQWVzS2V5AQwAAQlIYXNoSWRLZXkBDAABBVRyaWFsAQQAAQVFeHRy\nYQEMAAEKRXhwaXJlVGltZQH/hAABD1Jlc3BvbnNlQ29udHJvbAH/hgAAABD/gwUB\nAQRUaW1lAf+EAAAA/+v/hQMBAQ9SZXNwb25zZUNvbnRyb2wB/4YAAREBBFpvbmUB\nBAABBEFyZWEBBAABCEJ1aWxkaW5nAQQAAQdQb2lOYW1lAQQAAQdBZGRyZXNzAQQA\nAQZTdHJlZXQBBAABCUxvbmdpdHVkZQEEAAEITGF0aXR1ZGUBBAABBUJyYW5kAQQA\nAQlGbG9vck5hbWUBBAABCFByb3ZpbmNlAQQAAQRDaXR5AQQAAQZSZWdpb24BBAAB\nB1BvaUNvZGUBBAABBkNwQ29kZQEEAAELUG9pQ2F0ZWdvcnkBBAABDFBvaUF0dHJp\nYnV0ZQEEAAAALP+CKQEBMQEBMQETMjAxOS0wNS0yOCAyMjowMDowMAECAQExAQEx\nAgExAgAAAf4CAH0RJSpHHmNY/hAQt43pM+qyxZGQ3WzVv1LsaxX55IAqSVHE5w4N\nBmWt3YUt/tG4fy++q1GpWvTsEqAGo1BNTyi/TqK57z5d57GC/gBYlDU8Ke3ZVnyR\n0qWOq5rKdWuMuyNGG9S24U6maaH+sVoumnVSWZohBrOgmjXQ5n2T4c3O+sTjme56\n16UVEXEPRMfAOUaK0Vqte4zpuOuhqQBao0u/nUWBz5zOdlNQYhM5nLWnElmPET8O\namG6FJO16N3UaYaHP+yxlEN4ma1hJUvxm1i5GCEZbOxJY1ke1Dsj3Em3nVg52w4p\ncpAfb5ep9I1xkbavIQ2gxNCjmQG34aDhciVXkEBepVtQZ8ay6b96EiEnhnF72TEy\n/wtxx2p8KoN6wK60PQpW1ZdebROmGOBxQngJkTjjP48gkz+8XaYTpbCMRf4QIbwe\n+QdcnRHm/lgcTY2z98YUaVKmC/TuNzmmaOs/0lPEpq4Z1zgktsCLaMjq6fRjfCOW\n6s4loZhCOh57IlY0AmDuBi2fVwtV7kEyqqxF+2VIOXR/QQakdutfOzimrD3UbZZm\nJOLcbyq1EJjwq+yEs8fXNAhg8lOJMbY8EJ1kNrKjRGUZ82I7WDMYiuZopQNId/HE\nnQDUcLqDQ6x3CCeCVFL+KW5SfVrqwelSaZaeogkHX3RftdIVHhltCwegAA==\n-----END LICENSE KEY-----`
strings.Replace(license, "\n", "", -1)
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直接使用\n根本无法替换成功，正确的做法是对\n再进行转义：\\n
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strings.Replace(license, "\\n", "", -1)
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字符串去除空格和换行符
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package main
import (
"fmt"
"strings"
)
func main() {
str := "这里是 www\n.jb51\n.net"
fmt.Println("-------- 原字符串 ----------")
fmt.Println(str)
// 去除空格
str = strings.Replace(str, " ", "", -1)
// 去除换行符
str = strings.Replace(str, "\n", "", -1)
fmt.Println("-------- 去除空格与换行后 ----------")
fmt.Println(str)
}
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输出结果为：
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-------- 原字符串 ----------
这里是 www
.jb51
.net
-------- 去除空格与换行后 ----------
这里是www.zzvips.com
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以上为个人经验，希望能给大家一个参考，也希望大家多多支持服务器之家。如有错误或未考虑完全的地方，望不吝赐教。
原文链接：https://blog.csdn.net/u010918487/article/details/90704356