验证服务员在预检机上输入的账目，必要时按酒店的规章制度更改账单的项目，客人数量等。
Validate input attendant on the preview accounts, necessary according to the rules and regulations of the hotel to change the bill of projects, number of guests, etc.
我想你再做一个跨域请求，浏览器发送请求的选项为“预检要求要求服务器发送请求的提出。”
My guess is your a re making a cross domain request so the browser is sending the OPTIONS request as a 'preflight-request' asking the server for permission to send the PUT request.
我想你再做一个跨域请求，浏览器发送请求的选项为“预检要求要求服务器发送请求的提出。”
My guess is your a re making a cross domain request so the browser is sending the OPTIONS request as a 'preflight-request' asking the server for permission to send the PUT request.
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