# 题目

# 考查arguments和this指向

var length = 10;
function fn() {
    console.log(this.length)
}
var obj = {
    length: 5,
    getF: function (fn) {
    console.log(this.length)
    fn();
    arguments[0]();
    }
}
obj.getF(fn);
// 10 5 1

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