Once the user submits this form, the script first checks whether one or more search keywords were entered, and halts script processing with an error message if it finds none.
当用户提交该表单后，脚本首先检查是否输入了一个或多个搜索关键字，如果一个也没有输入，则中断脚本处理并显示一条错误消息。
However, image processing, animation and interactive script processing function are still not perfect, pending further studies and improvements.
但是在图像处理、脚本交互和动画处理等功能上还不够完善，有待进一步的研究和改进。
Script processing takes place when the user's browser sends a request to the server, usually by triggering an event.
当用户浏览器向服务器发送请求(通常是通过触发事件来实现)时，将进行脚本处理。
Script processing takes place when the user's browser sends a request to the server, usually by triggering an event.
当用户浏览器向服务器发送请求(通常是通过触发事件来实现)时，将进行脚本处理。
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