go的strings，strconv

package main import ( "fmt" "strings" "strconv" ) func main() { var str = ` 床前明月光， 疑是地上霜。 ` fmt.Println(str) var a = "66666" fmt.Println(a) fmt.Println(strings.Fields("abc def ghi")) //替换两边的a(可以是连续多个a) fmt.Println(strings.Trim("aabbaabcbbaa","a")) //替换所有a，b fmt.Println(strings.Trim("abbaabcbba","ab")) //替换左边的ab(可以是连续多个a或b) fmt.Println(strings.TrimLeft("abbaabcbba","ab")) //替换右边的ab(可以是连续多个a或b) fmt.Println(strings.TrimRight("abbaabcbba","ab")) fmt.Println(strings.Split("ab,ba,ab,cb,ba",",")) fmt.Println(strings.Join([]string{"ab", "ba", "ab", "cb", "ba"},",")) fmt.Println(strings.Repeat("A", 6)) //-1替换所有，0不替换，大于零的整数n为前n个 fmt.Println(strings.Replace("aabbccddeeaabb","a", "*", 0)) //字符串出现的次数 fmt.Println(strings.Count("abcdabefab", "ab")) fmt.Println(strings.ToLower("ABC")) fmt.Println(strings.ToUpper("abc")) //整数转换字符转 fmt.Println(strconv.Itoa(1)) //字符串转换整数（返回两个值：转换后的值和错误） fmt.Println(strconv.Atoi("666")) } 

输出：

 床前明月光， 疑是地上霜。

66666
[abc def ghi]
bbaabcbb
c
cbba
abbaabc
[ab ba ab cb ba]
ab,ba,ab,cb,ba
AAAAAA
aabbccddeeaabb
3
abc
ABC
1
666 <nil>

Process finished with exit code 0