Question

我想检查字符串是否包含两个引号，例如“'和括号（...）出现在字符串中的任何位置。

例如

string s = "The flora and fauna of Britain \"has been transported to almost every corner of the globe since colonial times\" (Plants and Animals of Britain, 1942: 8).";

string x = "Morris et al (2000: 47) state 'that the debate of these particular issues should be left to representative committees.'";

我想出了这个：

Regex.IsMatch(x, @"(?<=""')[^\""]*(?=""')")

但是，我想我会尝试使用@RB

提到的string.Contains

@musefan，字符串s和y都是正面结果，引号必须打开和关闭。

Answer 1

您可以使用LINQ方法使用Count执行此操作：

string s = "The flora and fauna of Britain \"has been transported to almost every corner of the globe since colonial times\" (Plants and Animals of Britain, 1942: 8).";

bool isMatch = s.Count(c => c == '"') % 2 == 0  ||
               s.Count(c => c == '\'') % 2 == 0 ||
               (s.Count(c => c == '(') == s.Count(c => c == ')'));

如果您想确保该字符串包含所有字符" ' ( )，只需将||更改为&&

正则表达式检查某些字符

1 个答案: