如何迭代打印多个值的过程？

huangapple
go评论113阅读模式
英文:

How to iterate the process of printing multiple values?

问题

在这个Go语言代码中，我要求一个人输入他的名字。在输入名字后，数据将从values1变量中获取，并且结果将按照给定的键打印出来，就像这样：

给定结果

  1. 输入你的名字：samename
  3. 这是名字：samename
  4. 这是电子邮件地址：email one
  5. 这是工作角色：job one

我还想打印被注释的values2变量的数据。类似地，如果我有n个值，我需要重复使用for i := range values1吗？

所需结果

  1. 输入你的名字：samename
  3. 这是名字：samename
  4. 这是电子邮件地址：email one
  5. 这是工作角色：job role one
  7. 这是名字：samename
  8. 这是电子邮件地址：email two
  9. 这是工作角色：job role two
  10. ...
  11. ...

代码

  1. package main
  3. import "fmt"
  5. func main() {
  6. 	var name string
  7. 	keys := [3]string{"name", "email address", "job role"}
  8. 	values1 := [3]string{"samename", "email one", "job role one"}
  9. 	// values2 := [3]string{"samename", "email two", "job role two"}
  11. 	for {
  12. 		fmt.Printf("输入你的名字：")
  13. 		fmt.Scanln(&name)
  14. 		fmt.Println()
  16. 		if name == values1[0] {
  17. 			for i := range values1 {
  18. 				// j是keys的索引
  19. 				j := i % len(keys)
  21. 				// 在组之间打印空行。
  22. 				if j == 0 && i > 0 {
  23. 					fmt.Println()
  24. 				}
  25. 				fmt.Printf("这是%s：%s\n", keys[j], values1[i])
  26. 			}
  27. 			break
  28. 		} else {
  29. 			fmt.Println("名字未找到。请重试！")
  30. 		}
  31. 	}
  32. }
英文:

In this golang code, I am asking a person to enter his name. After entering the name, the data will be taken from the values1 variable, and as a result, they will be printed out with the given keys like this

Given result

  1. Enter your name: samename
  3. Here is the name: samename
  4. Here is the email address: email one
  5. Here is the job role: job one

I also want to print the data of the values2 variable that is commented. Similarly, if I have the n number of values, will I have to repeat the for i := range values1 again and again?

Required result

  1. Enter your name: samename
  3. Here is the name: samename
  4. Here is the email address: email one
  5. Here is the job role: job role one
  7. Here is the name: samename
  8. Here is the email address: email two
  9. Here is the job role: job role two
  10. ...
  11. ...

Code

  1. package main
  3. import "fmt"
  5. func main() {
  6. 	var name string
  7. 	keys := [3]string{"name", "email address", "job role"}
  8. 	values1 := [3]string{"samename", "email one", "job role one"}
  9. 	// values2 := [3]string{"samename", "email two", "job role two"}
  11. 	for {
  12. 		fmt.Printf("Enter your name: ")
  13. 		fmt.Scanln(&name)
  14. 		fmt.Println()
  16. 		if name == values1[0] {
  17. 			for i := range values1 {
  18. 				// j is index into keys
  19. 				j := i % len(keys)
  21. 				// Print blank line between groups.
  22. 				if j == 0 && i > 0 {
  23. 					fmt.Println()
  24. 				}
  25. 				fmt.Printf("Here is the %s: %s\n", keys[j], values1[i])
  26. 			}
  27. 			break
  28. 		} else {
  29. 			fmt.Println("Name is not found. Try again!")
  30. 		}
  31. 	}
  32. }

答案1

得分: 2

如果你需要打印键值对，可以使用map。使用map，你可以同时打印键和值。

  1. package main
  3. import "fmt"
  5. func main() {
  6. 	var name string
  7. 	value1 := map[string]string{"name": "samename", "email": "email one", "role": "job role one"}
  8. 	value2 := map[string]string{"name": "samename", "email": "email two", "role": "job role two"}
  9. 	values := []map[string]string{value1, value2}
  10. 	var found bool
  12. 	for {
  13. 		fmt.Printf("请输入你的名字：")
  14. 		fmt.Scanln(&name)
  15. 		fmt.Println()
  17. 		for _, value := range values {
  18. 			if value["name"] == name {
  19. 				found = true
  20. 				for k, v := range value {
  21. 					fmt.Printf("这是%s的值：%s\n", k, v)
  22. 				}
  23. 				fmt.Println()
  24. 			}
  25. 		}
  27. 		if found {
  28. 			break
  29. 		} else {
  30. 			fmt.Println("名字未找到，请重试！")
  31. 		}
  32. 	}
  33. }

希望对你有帮助！

英文:

if you need to print the keys, maybe you can use map. with map you can print both of key and value.

  1. package main
  3. import "fmt"
  5. func main() {
  6. 	var name string
  7. 	value1 := map[string]string{"name": "samename", "email": "email one", "role": "job role one"}
  8. 	value2 := map[string]string{"name": "samename", "email": "email two", "role": "job role two"}
  9. 	values := []map[string]string{value1, value2}
  10. 	var found bool
  12. 	for {
  13. 		fmt.Printf("Enter your name: ")
  14. 		fmt.Scanln(&name)
  15. 		fmt.Println()
  17. 		for _, value := range values {
  18. 			if value["name"] == name {
  19. 				found = true
  20. 				for k, v := range value {
  21. 					fmt.Printf("Here is the %s: %s\n", k, v)
  22. 				}
  23. 				fmt.Println()
  24. 			}
  25. 		}
  27. 		if found {
  28. 			break
  29. 		} else {
  30. 			fmt.Println("Name is not found. Try again!")
  31. 		}
  32. 	}
  33. }

huangapple
  • 本文由 发表于 2022年9月3日 15:28:17
  • 转载请务必保留本文链接：https://go.coder-hub.com/73590440.html
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