我想做一個簡單的程序來計算債務分期付款。要求是：輸入債務價值輸入分期付款多長時間分期付款銀行的上半年利率為11%，其余為8%必須使用地圖這是我的代碼package mainimport "fmt"func main() {    fmt.Print("Input the debt value : ")    var debt int    fmt.Scanln(&debt)    fmt.Print("Input how long the installments : ")    var installment int    fmt.Scanln(&installment)    fmt.Println("====================================================")    fmt.Println("Total debt : ", debt)    fmt.Println("Installments : ", installment)    fmt.Println("====================================================")    var firstHalf = installment / 2    var pay int    for i := 1; i <= installment; i++ {        value := map[string]int{            "month":    i,            "payment": pay,        }        if i <= firstHalf {            pay = (debt / installment) + (debt * 11 / 100)            fmt.Println(value["month"],"Installment with bank interest (11%) is", value["payment"])        } else {            pay = (debt / installment) + (debt * 8 / 100)            fmt.Println(value["month"],"Installment with bank interest (8%) is", value["payment"])        }    }}如果我運行代碼，例如：債務是10.000.000分期付款是7個月這是輸出：1 Installment with bank interest (11%) is 02 Installment with bank interest (11%) is 25285713 Installment with bank interest (11%) is 25285714 Installment with bank interest (8%) is 25285715 Installment with bank interest (8%) is 22285716 Installment with bank interest (8%) is 22285717 Installment with bank interest (8%) is 2228571我不知道為什么第一個索引總是0，甚至下一個計算都是對的。所以，我想要么是我使用了錯誤的語法，要么是我試圖做一些無法做到的事情。也許最有可能有經驗的人會立即看到問題所在。