Regex – How to check if a string is matched the text but not the number?(正则表达式-如何检查字符串是否与文本匹配，而不是与数字匹配？)

I want to check a string is matched so I will do some business logics with it.

The pattern is very simple.

If it matches 100% text but different number so it’s a match.

Example:

Pattern: “xxx is a large number” which xxx must be a integer number (not null, not empty, not text, not double number)

  • “123 is a large number” => match
  • “444444 is a large number” => match
  • “is a large number” => not match
  • “123 is not a large number” => not match
  • “Test is a large number” => not match

My code:

var pattern = "^[0-9]+$ is a large number";
var testText = "123 is a large number";
var match = Regex.Match(testText, pattern, RegexOptions.IgnoreCase);
if (match.Success)
{
    //do some business logics
}

This is the Regex I try but doesn’t work:

"^[0-9]+$ is a large number"

Thank you.

Solution:

^(\d)+ is a large number$

  • ^ for the start of the string

^ for the start of the string

  • \d+ for a digit, 1 or more times

\d+ for a digit, 1 or more times

  • is a large number$ for the rest of the string (and $ to signify the end)

is a large number$ for the rest of the string (and $ to signify the end)

————————

我想检查一个字符串是否匹配，所以我会用它做一些业务逻辑。

模式非常简单。

如果它与100%文本匹配，但数字不同，那么它是匹配的。

例子：

模式：“xxx是一个大数字”，其中xxx必须是整数（非空、非空、非文本、非双数）

  • “123是一个大数字”=>匹配
  • “4444是一个大数字”=>匹配
  • “是一个大数字”=>不匹配
  • “123不是一个大数字”=>不匹配
  • “测试是一个大数字”=>不匹配

我的代码：

var pattern = "^[0-9]+$ is a large number";
var testText = "123 is a large number";
var match = Regex.Match(testText, pattern, RegexOptions.IgnoreCase);
if (match.Success)
{
    //do some business logics
}

这是我尝试过但不起作用的正则表达式：

"^[0-9]+$ is a large number"

非常感谢。

解决方法:

^（\d）+是一个很大的数字$

  • ^开始的时候

^开始的时候

  • \d+表示一个数字，1次或多次

\d+表示一个数字，1次或多次

  • 字符串的其余部分是一个大数字$（表示结束的是$）

字符串的其余部分是一个大数字$（表示结束的是$）