this.resourceProgresses和item.id可以正常打印出来,
它的key包含了'-'符号，所以我取值用的是obj['key']方式 但是枚举值就是undefined 这 是为什么呢
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按照你那样取的话相当于
console.log(this.resourceProgresses[39f50-22])
此时item.id还不是一个整体， 用-分割了
这样试一下
console.log(this.resourceProgresses[item.id+""])