如何在 Golang 中连接两个字符串?
在 Golang 中连接两个字符串的最简单方法是使用“+”运算符。例如,
示例 1
package main import ( "fmt" ) func main() { str1 := "Hello..." str2 := "How are you doing?" fmt.Println("1st String:", str1) fmt.Println("2nd String:", str2) // Concatenate using the + Operator fmt.Println("Concatenated String:", str1 + str2) }
输出
将产生以下输出
1st String: Hello... 2nd String: How are you doing? Concatenated String: Hello...How are you doing?
使用 strings.Join() 连接
strings.Join() 是 Golang 中内置的一个函数,用于将多个字符串连接成一个字符串。
语法
其语法如下:
func Join(stringSlice []string, sep string) string
其中:
- stringSlice – 要连接的字符串。
- sep – 要放在切片元素之间的分隔字符串。
示例 2
让我们考虑以下示例:
package main import ( "fmt" "strings" ) func main() { // Initializing the Strings m := []string{"IndexByte", "String", "Function"} n := []string{"Golang", "IndexByte", "String", "Package"} // Display the Strings fmt.Println("Set 1 - Slices of Strings:", m) fmt.Println("Set 2 - Slices of Strings:", n) // Using the Join Function output1 := strings.Join(m, "-") output2 := strings.Join(m, "/") output3 := strings.Join(n, "*") output4 := strings.Join(n, "$") // Display the Join Output fmt.Println("\n Joining the slices of Set 1 with '-' delimiter: \n", output1) fmt.Println("\n Joining the slices of Set 1 with '/' delimiter: \n", output2) fmt.Println("\n Joining the slices of Set 2 with '*' delimiter: \n", output3) fmt.Println("\n Joining the slices of Set 2 with '$' delimiter: \n", output4) }
输出
它将生成以下输出:
Set 1 - Slices of Strings: [IndexByte String Function] Set 2 - Slices of Strings: [Golang IndexByte String Package] Joining the slices of Set 1 with '-' delimiter: IndexByte-String-Function Joining the slices of Set 1 with '/' delimiter: IndexByte/String/Function Joining the slices of Set 2 with '*' delimiter: Golang*IndexByte*String*Package Joining the slices of Set 2 with '$' delimiter: Golang$IndexByte$String$Package
示例 3
我们再来看一个示例。
package main import ( "fmt" "strings" ) func main() { // Defining the Variables var s []string var substr string var substr1 string var result string var output string // Intializing the Strings s = []string{"This", "is", "String", "Function"} substr = "..." substr1 = " " // Display the input slice of strings fmt.Println("Input Slice of Strings:", s) // Using the Join Function result = strings.Join(s, substr) output = strings.Join(s, substr1) // Displaying output of Join function fmt.Println("Joining with '...' delimiter:", result) fmt.Println("Joining with ' ' delimiter:", output) }
输出
它将生成以下输出:
Input Slice of Strings: [This is String Function] Joining with '...' delimiter: This...is...String...Function Joining with ' ' delimiter: This is String Function
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