let arr = [
{
name: '张三',
age: 10
}, {
name: '李四',
age: 11
}
]
for(let i of arr) {
console.log(i);
console.log(i.name)
}
console.log('--------------');
for(let j in arr) {
console.log(j);
console.log(arr[j].name)
}