1、append函数的使用
作用：在原切片的末尾添加元素
示例：
package main //必须有个main包import "fmt"func main() { s1 := []int{} fmt.Printf("len = %d, cap = %d
", len(s1), cap(s1)) fmt.Println("s1 = ", s1) //在原切片的末尾添加元素 s1 = append(s1, 1) s1 = append(s1, 2) s1 = append(s1, 3) fmt.Printf("len = %d, cap = %d
", len(s1), cap(s1)) fmt.Println("s1 = ", s1) s2 := []int{1, 2, 3} fmt.Println("s2 = ", s2) s2 = append(s2, 5) s2 = append(s2, 5) s2 = append(s2, 5) fmt.Println("s2 = ", s2)} |
#执行结果：
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1
2
3
4
5
6
7
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len = 0, cap = 0s1 = []len = 3, cap = 4s1 = [1 2 3]s2 = [1 2 3]s2 = [1 2 3 5 5 5] |