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79 lines
1.3 KiB
79 lines
1.3 KiB
package common
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import (
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"math"
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"strconv"
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"strings"
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)
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func StringToArray(input string) []int {
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output := []int{}
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for _, v := range input {
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output = append(output, int(v))
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}
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for i, j := 0, len(output)-1; i < j; i, j = i+1, j-1 {
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output[i], output[j] = output[j], output[i]
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}
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return output
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}
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func GetInput(input string) <-chan int {
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out := make(chan int)
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go func() {
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for _, b := range StringToArray(input) {
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out <- b
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}
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close(out)
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}()
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return out
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}
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func SQ(in <-chan int) <-chan int {
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out := make(chan int)
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var base, i float64 = 2, 0
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go func() {
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for n := range in {
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out <- (n - 48) * int(math.Pow(base, i))
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i++
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}
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close(out)
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}()
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return out
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}
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func ToInt(input string) int {
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c := GetInput(input)
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out := SQ(c)
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sum := 0
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for o := range out {
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sum += o
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}
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return sum
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}
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// int 转 二进制的字符串
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func ConverToBinary(n int) string {
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res := ""
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for ; n > 0; n /= 2 {
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lsb := n % 2
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res = strconv.Itoa(lsb) + res
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}
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return res
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}
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// 格式化页面传入的cartIds 方法提取
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func SplitToInt32List(str string, sep string) (int32List []int32) {
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tempStr := strings.Split(str, sep)
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if len(tempStr) > 0 {
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for _, item := range tempStr {
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if item == "" {
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continue
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}
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val, err := strconv.ParseInt(item, 10, 32)
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if err != nil {
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continue
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}
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int32List = append(int32List, int32(val))
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}
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}
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return int32List
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}
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