任慧英 2021-04-07 06:30 平起平坐+坐享其成+成千上万 + 万象森罗 + 罗雀掘鼠 + 鼠窃狗盗 + 盗憎主人 + 人莫予毒 + 毒手尊前 + 前因后果 + 果于自信 + 信赏必罚 + 罚不当罪 + 罪恶昭彰 + 彰善瘅恶 + 恶贯满盈 +
I am trying to generate a syntax tree, for a given string with simple math operators (+, -, *, /, and parenthesis).