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\n"
, 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\n"
, 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)
}
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#执行结果:
1
2
3
4
5
6
7
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len = 0, cap = 0
s1 = []
len = 3, cap = 4
s1 = [1 2 3]
s2 = [1 2 3]
s2 = [1 2 3 5 5 5]
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