50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
package calc
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import (
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"b612.me/starlog"
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"b612.me/staros"
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"errors"
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"fmt"
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"github.com/spf13/cobra"
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"strconv"
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"strings"
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)
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var Cmd = &cobra.Command{
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Use: "calc",
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Short: "计算器",
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Long: "简单的计算器",
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RunE: func(cmd *cobra.Command, args []string) error {
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if len(args) == 0 {
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starlog.Errorln("请至少输入一个算式")
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return errors.New("no sentense")
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}
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var res []string
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printRes := func() {
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for k, v := range res {
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fmt.Println(args[k], "=", v)
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}
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}
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for k, v := range args {
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for i := k; i > 0; i-- {
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v = strings.ReplaceAll(v, "$"+strconv.Itoa(i), res[i-1])
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}
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v = strings.ReplaceAll(v, "x", "*")
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v = strings.ReplaceAll(v, "X", "*")
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v = strings.ReplaceAll(v, "×", "*")
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v = strings.ReplaceAll(v, "÷", "*")
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v = strings.ReplaceAll(v, "（", "(")
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v = strings.ReplaceAll(v, "）", ")")
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c, err := staros.Calc(v)
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if err != nil {
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printRes()
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starlog.Errorf("calc %s Error:%v\n", v, err)
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return err
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}
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res = append(res, strconv.FormatFloat(c, 'f', -1, 64))
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}
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printRes()
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return nil
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},
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}
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