有这样类似的字符串 :abc and deandf and "hij and abc and def or dcd" or "abc"
用 and|or 进行分割，但""双引号之间的 and|or 不作为分割符
结果如下
abc
deandf
"hij and abc and def or dcd"
"abc"
------解决方案--------------------
try...
- C# code
string test = "abc and deandf and \"hij and abc and def or dcd\" or \"abc\""; Regex reg = new Regex(@"(?s)\b(?:and|or)\b(?=(?:(?:[^""]*""){2})*[^""]*$)"); string[] result = reg.Split(test); foreach (string s in result) { richTextBox2.Text += s + "\n"; }