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回复: Qt字符串转数字,小数位丢失
#6 [whgdaniel 04-09 08:12]
我想不会吧,运算后的数字我存入了Sqlite表中,查询表中结果跟显示的结果一样。
#7 [hitzsf 04-09 11:06]
1.调试
2.qDebug("%f",kDouble);
#8 [hitzsf 04-09 11:15]
https://blog.csdn.net/wanywhn/article/details/79769840
#9 [whgdaniel 04-10 08:08]
我还是上截图吧,字符串是"13629.38",转成Double后成了13629.4, 表查询的结果也是13629.4,自动进位了, 并不是我想要的结果。
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#10 [tanyue.esec 04-11 22:12]
感觉可以debug看下值是多少,按说double是足够了。
输出log和存库,可能都不好定位是在哪里把精度截断了。

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