Golang写的web分页

```go
// main.go
package main
import (
"fmt"
)
func main() {
fmt.Println("Hello World!")
//	var arrayInt []int = []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}
//	arr, err := paging(1, 55, arrayInt)
//	fmt.Println("arr:", arr, "err:", err)
}
func paging(page_element_start int, page_size int, array []int) ([]int, string) {
//	var arrayErr []int
var arraySlice []int
pageEnd := page_size + page_element_start - 1
switch {
case page_element_start > len(array):
return arraySlice, "初始元素位置大于查询数组长度"
case page_element_start+page_size-1 > len(array):
arraySlice = array[page_element_start-1 : len(array)]
return arraySlice, "已经到了最后一页"
//	case page_size > len(array):
//	arraySlice = array
case page_element_start < len(array) && page_element_start+page_size-1 <= len(array) && page_size <= len(array):
arraySlice = array[page_element_start-1 : pageEnd]
return arraySlice, ""
}
return arraySlice, "未知情况"
}
func paging_map_interface(page_element_start int, page_size int, array []map[string]interface{}) ([]map[string]interface{}, string) {
//	var arrayErr []int
arraySlice := []map[string]interface{}{}
pageEnd := page_size + page_element_start - 1
switch {
case page_element_start > len(array):
return arraySlice, "初始元素位置大于查询数组长度"
case page_element_start+page_size-1 > len(array):
arraySlice = array[page_element_start-1 : len(array)]
return arraySlice, "已经到了最后一页"
//	case page_size > len(array):
//	arraySlice = array
case page_element_start < len(array) && page_element_start+page_size-1 <= len(array) && page_size <= len(array):
arraySlice = array[page_element_start-1 : pageEnd]
return arraySlice, ""
}
return arraySlice, "未知情况"
}
```

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