脚本一开始是读入数据，然后输出主体表头。
The script starts by reading in the data, then printing the body header.
代码首先读入数据，然后输出主体和数据表头。
The code first reads in the data, then prints both the body and data headers.
有时，即使只是读入数据也可以是安全漏洞——甚至在数据被检查之前！
Sometimes, even just reading data can be a security vulnerability — before the data is even checked!
应用推荐