var items = this.state.items; items[i].status = 'doing'; this.setState({ items: items });
//this.state.useLists[index].status === '10'?
let items = this.state.useLists;
items[index] === '10' ? items[index] = '20' : items[index] = '10';
this.setState({
useLists:items
});
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