正则表达式 - 匹配括号但从结果中排除它们

I have this example string

我有这个示例字符串

[can be anything here %+^-_][can be anything here %+^-_][can be anything here %+^-_][can be anything here %+^-_][can be anything here %+^-_][can be anything here %+^-_][can be anything here %+^-_][can be anything here %+^-_]
[can b