英文:
How to read a word in upper and lower case from file? Go
问题
我有一个任务，需要读取一个文件，然后扫描是否包含"不良词汇"，最后输出文件中是否包含"不良词汇"的结果，如果包含则输出"True"，否则输出"False"。
我写了这个函数：
func readFile(fileName string, tabooName string) {dataFile, err := os.Open(fileName)if err != nil {log.Fatal(err)}defer dataFile.Close()scanner := bufio.NewScanner(dataFile)for scanner.Scan() {scanner.Text()if strings.Contains(scanner.Text(), strings.ToLower(tabooName)) || strings.Contains(scanner.Text(), strings.ToUpper(tabooName)) {fmt.Println("True")break} else {fmt.Println("False")break}}if err := scanner.Err(); err != nil {log.Fatal(err)}}
但是，如果"不良词汇"以大写形式写入，它无法正常工作。例如：
测试 #2 中的错误答案这个词属于不良词汇请查看您的程序在此失败测试期间的输出。注意，">" 字符表示输入行的开头。---forbidden_words.txtHARSHFalse
我应该如何正确处理这个问题？
更新：我不知道为什么，但这个函数现在可以正常工作了...
首先，我只是将整个函数写在了main函数中，它可以工作，现在将函数封装成了func，它也可以工作。我不知道为什么，哈哈。
英文:
I have a task to read a file and, then scan for "bad word", and finally output "True" or "False" if "bad word" contains in file or not.
I wrote this function:
func readFile(fileName string, tabooName string) {dataFile, err := os.Open(fileName)if err != nil {log.Fatal(err)}defer dataFile.Close()scanner := bufio.NewScanner(dataFile)for scanner.Scan() {scanner.Text()if strings.Contains(scanner.Text(), strings.ToLower(tabooName)) || strings.Contains(scanner.Text(), strings.ToUpper(tabooName)) {fmt.Println("True")break} else {fmt.Println("False")break}}if err := scanner.Err(); err != nil {log.Fatal(err)}}
But it does not work if the "bad word" is written in UPPERCASE
For example:
Wrong answer in test #2This word belongs to bad wordsPlease find below the output of your program during this failed test.Note that the '>' character indicates the beginning of the input line.---forbidden_words.txtHARSHFalse
How can i do it corectly?
UPDATE: I don't know why but this function is working now...
First, i justed wrote this whole func in main function, and it's working, now with func it's working too. I don't know why lol
答案1
得分: 1
你可以稍微不同地使用strings.Contains和strings.ToLower：
func readFile(fileName string, tabooName string) {file, err := os.Open(fileName)if err != nil {log.Fatal(err)}defer file.Close()tabooNameLowered := strings.ToLower(tabooName)scanner := bufio.NewScanner(file)for scanner.Scan() {loweredLine := strings.ToLower(scanner.Text())if strings.Contains(loweredLine, tabooNameLowered) {fmt.Println("True")return}}fmt.Println("False")if err := scanner.Err(); err != nil {log.Fatal(err)}}
英文:
You could use <code>strings.<b>Contains</b></code> and <code>strings.<b>ToLower</b></code> slightly differently:
func readFile(fileName string, tabooName string) {file, err := os.Open(fileName)if err != nil {log.Fatal(err)}defer file.Close()tabooNameLowered := strings.ToLower(tabooName)scanner := bufio.NewScanner(file)for scanner.Scan() {loweredLine := strings.ToLower(scanner.Text())if strings.Contains(loweredLine, tabooNameLowered) {fmt.Println("True")return}}fmt.Println("False")if err := scanner.Err(); err != nil {log.Fatal(err)}}
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论