Go语言中字符串操作常用函数介绍

• 操作

//"helloogo"中是否包含"hello"
	fmt.Println(strings.Contains("helloogo", "hello"))
	fmt.Println(strings.Contains("helloogo", "goe"))

	//Join组合
	s := []string{"abc", "hello", "mike", "go"}
	buf := strings.Join(s, "_")
	fmt.Println("buf = ", buf)

	//Index 查找子串所在位置
	fmt.Println(strings.Index("abcdhello", "hello"))
	fmt.Println(strings.Index("abcdhello", "go"))

	//Repeat 重复打印
	buf = strings.Repeat("go", 3)
	fmt.Println("buf = ", buf)

	//Split 以指定的分隔符对字符串进行拆分
	buf = "hello&abc&go&mike&you"
	s2 := strings.Split(buf, "&")
	fmt.Println("s2 = ", s2)

	//Trim 去掉两头的字符
	buf = strings.Trim("      are you ok    ", " ")
	fmt.Println("buf = ", buf)

	//Fields 去掉空格，把元素放入切片中
	s3 := strings.Fields("    are you ok?    ")
	for i, data := range s3 {
		fmt.Println(i, ", ", data)
	}

• 输出

true
false
buf =  abc_hello_mike_go
4
-1
buf =  gogogo
s2 =  [hello abc go mike you]
buf =  are you ok
0 ,  are
1 ,  you
2 ,  ok?