curl --location 'http://dev-cn.your-api-server.com/api/data/cities?appId=undefined&nonce=undefined&sign=undefined×tamp=undefined'{
"data": [
{
"cityCode": "string",
"cityName": "string",
"firstLetter": "string",
"hot": true
}
],
"errCode": "string",
"errMessage": "string"
}