【原始数据】
Array
(
    [0] => Array
        (
            [key1] => value1
            [key2] => value2
        )

    [1] => Array
        (
            [keyA] => valueA
        )

    [2] => Array
        (
            [\n] => value;
            [;] => value\n
        )

)

【存储文本】
key1=value1;key2=value2\nkeyA=valueA\n%5Cn=value%3B;%3B=value%5Cn
【加载文本】
Array
(
    [0] => Array
        (
            [key1] => value1
            [key2] => value2
        )

    [1] => Array
        (
            [keyA] => valueA
        )

    [2] => Array
        (
            [\n] => value;
            [;] => value\n
        )

)