题目说明
编写 function solution(text)。输入输出均为 JSON 值，不要修改输入数组或对象。不支持外部库、网络访问及异步函数。 text is valid CSV. Separator is comma; records use LF, CRLF or CR. A field may be fully double-quoted; inside it retain commas/newlines and unescape doubled quotes. Do not trim whitespace. A terminal record separator adds no phantom row. Empty text returns []; a blank record is ['']. Return arrays of field strings. Malformed CSV is outside the contract. 输入范围：每个输入数组最多50,000项，每个字符串最多1,000个字符。数字必须有限，整数及整数累计结果在JavaScript安全整数范围内。其他类型和有效性遵循上述规则。
输入输出示例
示例 1
函数参数
[ "a,b\n1,2" ]
返回值
[
[
"a",
"b"
],
[
"1",
"2"
]
]示例 2
函数参数
[ "\"a,b\",\"x\"\"y\"\r\n3,4" ]
返回值
[
[
"a,b",
"x\"y"
],
[
"3",
"4"
]
]示例 3
函数参数
[ "서울,\"공백\"" ]
返回值
[
[
"서울",
"공백"
]
]