仓颉 BASE

提供日期、随机数字、字符串操作等基础函数。

from std import time.*
from std import random.*

open class BASE {
    let VERSION : String = "v1.0"
    static let tb : Int64

    static init() {
        tb = 1234567890
    }

    public func getVer() : String {
        tb
        VERSION
    }

    // datetime, time
    public func dt() : UInt64 {
        _dt().toString()
        _dt()
    }
    public func dt(i : UInt64) : UInt64 {
        UInt64(_dt()) / UInt64(10 ** (14-i))
    }
    public func ms() : UInt64 {
        UInt64(_nsec()) / UInt64(10 ** 6)
    }
    protected func _dt() : UInt64 {
        var now = DateTime.now()
        let d : Int64 = (now.year*100 + now.monthValue)*100 + now.dayOfMonth
        let t = (now.hour*100 + now.minute)*100 + now.second
        UInt64((d*1000000 + t))
    }
    protected func _nsec() : UInt64 {
        var now = DateTime.now()
        let ms : Int64 = now.nanosecond
        UInt64(ms)
    }

    // rand, random
    public func rand() {
        _rand()
    }
    public func rand(l : UInt64) {
        //UInt64(_rand() % UInt64(10 ** l))
        UInt64(_rand() / UInt64(10 ** (19 - l)))
    }
    protected func _rand() : UInt64 {
        let r: Random = Random()
        r.seed = _nsec()
        var i : UInt64 = 0
        var flag : Bool = true
        while (flag) {
            try {
                i = UInt64(r.nextInt64())
                if (i >= UInt64(10 ** 18)) {
                    flag = false
                } else {
                    //println("number too small.\n")
                }
            } catch (e: Exception) {
                //println(e)
            }
        }
        UInt64(i)
    }
}

main() {
    var n1 :Int64 = BASE.tb
    println("Class Property: " + BASE.tb.toString())
 
    let b1 = BASE();
    println("Method  : " + b1.getVer())
    println("Property: " + b1.VERSION)

    println("DateTime: " + b1.dt().toString())

    print("random number: ")
    println(b1.rand())
}