os.Args仅读取在golang中运行文件时提供的一些数据[重复]

Question

This question already has an answer here:

• Golang :command line argument with -> charecter 1 answer

My Program:

package main

import (
    "log"
    "os"
)

func main() {
    inputs := os.Args[1:]
    log.Print(inputs)
}

When run with the command

go run filename.go 3001-3005 1->A,2->B,3->C,4->D,5->E

gives the output as [3001-3005 1-,2-,3-,4-,5-] instead of [3001-3005 1->A,2->B,3->C,4->D,5->E]

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Answer 1

The ">" characters on your command line are being interpreted as redirections meaning "send output to a file rather than to the console".

You should be able to stop this happening by quoting the command-line arguments in question. Exactly how you should do this depends on what OS you're on, what shell you're using if you're on a Unix-like OS, etc, but I would try putting double-quotes around that second argument, like this:

go run filename.go 3001-3005 "1->A,2->B,3->C,4->D,5->E"