目录引言基础方法Math.abs()适用类型与语法代码示例特殊数值处理复数绝对值（模）大整数与高精度小数底层实现与性能优化位运算技巧（仅限int类型）最小值溢出与 Math.absExact()解决方案1：手动判断解决方案2（Java
Heres the scenario: User comes to my website and opens a webpage with some javascript functionality. User edits the data through javascript
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