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0.1 + 0.2不等于0.3？为什么JavaScript有这种“骚”操作？
source link: https://juejin.im/post/5b90e00e6fb9a05cf9080dff
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写在前面 随着消费观念的改变，线上消费已经成为大众生活中不可或缺的一部分。在保证消费安全和用户隐私的同时，精准度也是必不可少的一环。试想一下，用户在一款产品上消费，结算金额出错，用户会怎么想？（数体教 or WTF？)，妥妥的差评了吧。 这样不要说用户粘性了，
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