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vue中一些不重要但是容易忘记的小问题
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v-if 判断为空
https://qa.1r1g.com/sf/ask/4254565871/
vue h 居中 居左
https://blog.csdn.net/yuanqianxi/article/details/123752634 https://www.52pojie.cn/thread-1044084-1-1.html
vue str转float
https://segmentfault.com/q/1010000011240370
vue formData的数据中要加入.formData
ex： this.$ref.contracr.formData.cost
Target version not match
https://blog.csdn.net/moxunjinmu/article/details/127262687