你可以尝试以下正则表达式：
str.split(",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)");
这将分割字符串,，后跟偶数双引号。换句话说，它用双引号引起来的逗号分隔。如果你在字符串中使用了引号，则此方法将起作用。
说明：
, // Split on comma
(?= // Followed by
(?: // Start a non-capture group
[^"]* // 0 or more non-quote characters
" // 1 quote
[^"]* // 0 or more non-quote characters
" // 1 quote
)* // 0 or more repetition of non-capture group (multiple of 2 quotes will be even)
[^"]* // Finally 0 or more non-quotes
$ // Till the end (This is necessary, else every comma will satisfy the condition)
)
你甚至可以在代码中使用(?x)正则表达式使用修饰符来键入此类内容。修饰符会忽略你的正则表达式中的任何空格，因此更容易读取分成多行的正则表达式，如下所示：
String[] arr = str.split("(?x) " +
", " + // Split on comma
"(?= " + // Followed by
" (?: " + // Start a non-capture group
" [^\"]* " + // 0 or more non-quote characters
" \" " + // 1 quote
" [^\"]* " + // 0 or more non-quote characters
" \" " + // 1 quote
" )* " + // 0 or more repetition of non-capture group (multiple of 2 quotes will be even)
" [^\"]* " + // Finally 0 or more non-quotes
" $ " + // Till the end (This is necessary, else every comma will satisfy the condition)
") " // End look-ahead
);
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