<script>
let asd = {
"yang": {
sex: "nan"
},
"xiao": {
age: "18"
},
"fei": {
"hob": "eat"
}
}
let obj = "eat"
console.log(asd);
for (let key in asd) {
console.log(asd[key]);
if (asd[key].hob === obj) {
console.log(11);
delete asd[key]
}
}
console.log(asd);
</script>
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