C# 正则表达式提取字符串中的数字

string inputStr = '.MOMODE

MOMODE: 1

.APMODE APMODE: 0

.PWMODE PWMODE: 0

.FQMODE FQMODE: 1

.LMMODE LMMODE: 0

'; string pattern = @"\D+"; string outputStr = Regex.Replace(inputStr, pattern, ""); Console.WriteLine(outputStr); //输出：110010