axios表单形式提交数据 axios post data by form type

axios post data by form type,axios application/x-www-form-urlencoded

request({
        // url: '',
        transformRequest: [function(data) {
            let ret = ''
            for (let it in data) {
                ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&'
            }
            return ret
        }],
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded'
        },
        method: 'post',
        params: query
    })