名称的正则表达式，只接受字母，两个单词之间只接受空格。名称的开头或结尾不允许有空格

Question

I tried this but it is not working我试过了，但它不工作

/^[A-Za-z\s]{1,}[\.]{0,1}[A-Za-z\s]{0,}$/

Answer 1

A solution could be ^[a-zA-Z]*?[a-zA-Z]*$一个解决方案可能是^[a-zA-Z]*?[a-zA-Z]*$

It checks if it starts with a letter, it has an optional space, and checks if it ends with a letter它检查是否以字母开头，是否有可选空格，并检查是否以字母结尾

Answer 2

You can use this regex, which solve your problem:您可以使用此正则表达式，它可以解决您的问题：

/^(?:[A-Za-z]+ ?[A-Za-z]+)*$/gm

So, your words are only alphabets and can be separated by only one space.因此，您的单词只是字母，只能用一个空格分隔。

If you want the words to be separated by several spaces, you can do the following:如果您希望单词被多个空格分隔，您可以执行以下操作：

/^(?:[A-Za-z]+ *[A-Za-z]+)*$/gm

I use no-capturing groups beacuse of repeated group ( (...)* ).由于重复组（ (...)* ），我使用无捕获组。

名称的正则表达式，只接受字母，两个单词之间只接受空格。 名称的开头或结尾不允许有空格