func main() {
println("this is a sort test")
flag.Parse()
fmt.Printf("The flag input is wrong, num is %d, please input again\n", flag.NArg())
fmt.Println(*infile)
if infile != nil {
fmt.Println("infile =", *infile, "outfile =", *outfile, "algorithm =", *algorithm)
} else {
fmt.Println("please input the infile")
return
}
values, err := readValues(*infile)
if err != nil {
fmt.Println(err)
} else {
fmt.Println("Read values: ", values)
t1 := time.Now()
switch *algorithm {
case "qsort":
qsort.QuickSort(values)
case "bubblesort":
bubblesort.BubbleSort(values)
default:
fmt.Println("unknow method of sort")
}
t2 := time.Now()
fmt.Println("sort algorithm", *algorithm, "costs", t2.Sub(t1), "to complete")
writeValues(values, *outfile)
}
}
func main() {
flag.Parse()
if infile != nil {
fmt.Println("infile=", *infile, "outfile =", *outfile, "algorithm = ", *algorithm)
}
values, err := readValues(*infile)
if err == nil {
t1 := time.Now()
switch *algorithm {
case "qsort":
qsort.QuickSort(values)
case "bubblesort":
bubblesort.BubbleSort(values)
default:
fmt.Println("Sorting algorithm", *algorithm, "is either unknown or unsupported")
}
t2 := time.Now()
fmt.Println("The sorting process costs", t2.Sub(t1), "to complete.")
writeValues(values, *outfile)
} else {
fmt.Println(err)
}
}
func main() {
flag.Parse()
if infile != nil {
fmt.Println("infile = ", *infile, "outfile = ", *outfile, "algorithm = ", *algorithm)
}
values, err := readValues(*infile)
if err != nil {
fmt.Println(err)
return
}
t1 := time.Now()
switch *algorithm {
case "qsort":
qsort.QuickSort(values)
case "bubblesort":
bubblesort.BubbleSort(values)
default:
fmt.Println("sort algorithm cannot recognized")
}
t2 := time.Now()
fmt.Println("The sorting process costs", t2.Sub(t1), "to complete")
fmt.Println("result: ", values)
err1 := writeValues(values, *outfile)
if err1 != nil {
fmt.Println("writeFailed", err)
}
}
func main() {
// 解析命令行参数
flag.Parse()
values, err := readValues(*infile)
if err == nil {
fmt.Println("Read values:", values)
switch *algorithm {
case "bubblesort":
bubblesort.BubbleSort(values)
case "qsort":
qsort.QuickSort(values)
default:
fmt.Println("Sorting algorithm", *algorithm, "is unknown.")
}
fmt.Println("Write values:", values)
writeValues(values, *outfile)
} else {
fmt.Println(err)
}
}
func main() {
//解析执行程序是带入的参数
flag.Parse()
//打印参数
if infile != nil {
fmt.Println("infile =", *infile, ",outfile = ", *outfile, ",algorithm =", *algorithm)
}
//将参数信息指定的文件读取出来
values, err := readValues(*infile)
//判断是否存在异常
if err != nil {
fmt.Println(err)
} else {
fmt.Println("Read values:", values)
//获取本地当前时间
t1 := time.Now()
switch *algorithm {
case "qsort": //使用快速排序
qsort.QuickSort(values)
case "bubblesort": //使用冒泡排序
bubblesort.BubbleSort(values)
default: //输入其他的内容提示无法识别
fmt.Println("Sorting algorithm:", *algorithm, "is either unknown or unsipported.")
}
t2 := time.Now()
fmt.Println("Write values:", values)
fmt.Println("The sorting process costs", t2.Sub(t1), "to complete")
//将排序后的值写出
writeValues(values, *outfile)
}
}