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this.dataList.forEach(item => {
if (item.children == null) {
this.checkedKeys.push(item.budgetItemId)
} else {
item.children.forEach(ite => {
if (ite.children == null) {
this.checkedKeys.push(ite.budgetItemId)
} else {
ite.children.forEach(it => {
if (it.children == null) {
this.checkedKeys.push(it.budgetItemId)
} else {
it.children.forEach(it2 => {
this.checkedKeys.push(it2.budgetItemId)
})
}
})
}
})
}
})
function fn(data){
data.forEach(item=>{
item.children? fn(item.children) : this.checkedKeys.push(item.budgetItemId);
})
}
fn(this.datalist)