今天在使用react开发过程中，在reducer中使用到了switch语句，声明相同变量是总是报如上错误，本以为是ES6语法错误，最后发现是switch语句不允许在不同case下面声明相同变量造成的
image.png
case后面的语句用{}包裹起来:
image.png
这样就不会报错了！如有错误，欢迎指出
今天在使用react开发过程中，在reducer中使用到了switch语句，声明相同变量是总是报如上错误，本以为是...
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