标签：空白 .com sep 表示 http sha space imp package
1.replace
func Replace(s, old, new string, n int) string
s:原来的字符串
old： 要被替换的久的字符串
new string：要替换旧字符串的新字符串
n:表示替换的次数
package main import "strings" import "fmt" func main() { str := "hello world abcd" result:= strings.Replace(str,"world","monday",1) fmt.Println(result); }
输出：
hello monday abcd
2.Count
func Count(s, sep string) int
s：整个字符串
sep:里面的子字符串
返回： 返回字符串s中有几个不重复的sep子串。
package main import "strings" import "fmt" func main() { str := "hello world abcd" count:=strings.Count(str,"a"); fmt.Println(count) }
输出：
1
3.repeat
func Repeat(s string, count int) string
string :字符串
count:重复几次 字符串
返回count个s串联的字符串。
package main
import "strings"
import "fmt"
func main() {
str := "hello world abcd"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
result:=strings.Repeat(str,2);
fmt.Println(result);
}
输出：
hello world abcdhello world abcd
4.ToLower
func ToLower(s string) string
返回将所有字母都转为对应的小写版本的拷贝。
解释：将字符串全部转为小写
package main
import "strings"
import "fmt"
func main() {
str := "HELLO WORLD"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
result:= strings.ToLower(str);
fmt.Println(result);
}
输出：
hello world
5. toupper
func ToUpper(s string) string
返回将所有字母都转为对应的大写版本的拷贝。
解释：将字符串全部转为大写
package main import "strings" import "fmt" func main() { str := "hello world " //result:= strings.Replace(str,"world","monday",1) //fmt.Println(result); //count:=strings.Count(str,"a"); //fmt.Println(count) // result:=strings.Repeat(str,2); //fmt.Println(result); result:= strings.ToUpper(str) fmt.Println(result); }
输出：
HELLO WORLD
6.strings.TrimSpace(str string)： 去掉字符串首尾空白字符
package main
import "strings"
import "fmt"
func main() {
str := " hello world "
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
//result:= strings.ToUpper(str)
//fmt.Println(result);
result:=strings.TrimSpace(str);
fmt.Println(result);
}
输出：
hello world
7.
strings.Trim(str string, cut string)：去掉字符串首尾cut字符
去掉指定的左右两边的字符串
package main
import "strings"
import "fmt"
func main() {
str := "11hello world11"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
//result:= strings.ToUpper(str)
//fmt.Println(result);
//result:=strings.TrimSpace(str);
// //fmt.Println(result);
result:=strings.Trim(str,"11");
fmt.Println(result);
}
输出：
hello world
8. strings.TrimLeft(str string, cut string)：去掉字符串首cut字符
去掉左边的指定字符串
package main
import "strings"
import "fmt"
func main() {
str := "11hello world11"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
//result:= strings.ToUpper(str)
//fmt.Println(result);
//result:=strings.TrimSpace(str);
// //fmt.Println(result);
//result:=strings.Trim(str,"11");
//fmt.Println(result);
result:=strings.TrimLeft(str,"11")
fmt.Println(result);
}
输出：
hello world11
9.strings.TrimRight(str string, cut string)：去掉字符串首cut字符
去掉右边的指定字符串
package main
import (
"fmt"
"strings"
)
func main() {
str := "11hello world11"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
//result:= strings.ToUpper(str)
//fmt.Println(result);
//result:=strings.TrimSpace(str);
// //fmt.Println(result);
//result:=strings.Trim(str,"11");
//fmt.Println(result);
//result:=strings.TrimLeft(str,"11")
//fmt.Println(result);
result:=strings.TrimRight(str,"11")
fmt.Println(result);
}
输出：
11hello world
10. strings.Field(str string)：返回str空格分隔的所有子串的slice
将字符串切割成数组返回
package main
import (
"fmt"
"strings"
)
func main() {
str := "hello world monday"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
//result:= strings.ToUpper(str)
//fmt.Println(result);
//result:=strings.TrimSpace(str);
// //fmt.Println(result);
//result:=strings.Trim(str,"11");
//fmt.Println(result);
//result:=strings.TrimLeft(str,"11")
//fmt.Println(result);
//result:=strings.TrimRight(str,"11")
//fmt.Println(result);
splitResult:= strings.Fields(str)
for i:=0;i<len(splitResult);i++ {
fmt.Println(splitResult[i]);
}
}
输出：
hello
world
monday
11.strings.Split(str string, split string)：返回str split分隔的所有子串的slice
将字符串按照特定的方式分割成子串
按照某个子字符进行切割
package main
import (
"fmt"
"strings"
)
func main() {
str := "hello world monday"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
//result:= strings.ToUpper(str)
//fmt.Println(result);
//result:=strings.TrimSpace(str);
// //fmt.Println(result);
//result:=strings.Trim(str,"11");
//fmt.Println(result);
//result:=strings.TrimLeft(str,"11")
//fmt.Println(result);
//result:=strings.TrimRight(str,"11")
//fmt.Println(result);
//splitResult:= strings.Fields(str)
//for i:=0;i<len(splitResult);i++ {
// fmt.Println(splitResult[i]);
//}
splitResult:= strings.Split(str,"o")
for i:=0;i<len(splitResult);i++ {
fmt.Println(splitResult[i]);
}
}
输出：
hell
w
rld m
nday
12.strings.Join(s1 []string, sep string)：用sep把s1中的所有元素链接起来
用sep把s1中的所有元素链接起来
package main
import (
"fmt"
"strings"
)
func main() {
str := "hello world monday"
//result:= strings.Replace(str,"world","monday",1)
//fmt.Println(result);
//count:=strings.Count(str,"a");
//fmt.Println(count)
// result:=strings.Repeat(str,2);
//fmt.Println(result);
//result:= strings.ToUpper(str)
//fmt.Println(result);
//result:=strings.TrimSpace(str);
// //fmt.Println(result);
//result:=strings.Trim(str,"11");
//fmt.Println(result);
//result:=strings.TrimLeft(str,"11")
//fmt.Println(result);
//result:=strings.TrimRight(str,"11")
//fmt.Println(result);
//splitResult:= strings.Fields(str)
//for i:=0;i<len(splitResult);i++ {
// fmt.Println(splitResult[i]);
//}
splitResult:= strings.Split(str,"o")
//for i:=0;i<len(splitResult);i++ {
// fmt.Println(splitResult[i]);
//}
str2:=strings.Join(splitResult,"o")
fmt.Println(str2);
}
输出：hello world monday
标签：空白 .com sep 表示 http sha space imp package
原文地址：https://www.cnblogs.com/guangzhou11/p/10816905.html
