go语言怎么遍历字符串

在Go语言中，可以使用range关键字来遍历字符串。下面是一个简单的例子：

package main  import ( 	"fmt" )  func main() { 	str := "Hello, World!"  	for index, char := range str { 		fmt.Printf("Character at index %d is %c\n", index, char) 	} } 

在上面的例子中，我们使用range关键字遍历字符串str，并输出每个字符的索引和字符本身。输出结果为：

Character at index 0 is H Character at index 1 is e Character at index 2 is l Character at index 3 is l Character at index 4 is o Character at index 5 is , Character at index 6 is   Character at index 7 is W Character at index 8 is o Character at index 9 is r Character at index 10 is l Character at index 11 is d Character at index 12 is !