// 举例
var ourDog = {
"name": "Camper",
"legs": 4,
"tails": 1,
"friends": ["everything!"]
};


ourDog.bark = "bow-wow";


// Setup
var myDog = {
"name": "Happy Coder",
"legs": 4,
"tails": 1,
"friends": ["Free Code Camp Campers"]
};


// Only change code below this line.
myDog.bark="woof";