删除冗余代码 释放处理增加内存释放

cheliequan

2023-01-13 6b08856cc8c5ee7ac9c300c1706fa0c45bf3bcba

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new_obj.to_string()=[1.20,3.40,123456.78,5.00,23000000000.00]
new_obj.to_string()=[1.2,3.4,123456.78,5.0,2.3e10]