11.代码模式

 // let obj = {
    //     name: '',
    //     age: '',
    //     date: '',
    //     price: 123,
    //     size: '',
    //     count: '',
    // }
    // console.log('hobby' in obj)
    //站长统计
    
    let count = (function(param) {
        let img = new Image()
        let src = 'www.baidu.com?'
        for(i in param) {
            src += i + '=' + param[i]
        }
    })()
    count({name: 10})