Taken example by remaining heat generation of a petrifaction corporation, its financial feasibility is analyzed.
以某石化公司余热发电项目为例,对余热综合利用发电的财务可行性进行了实证分析。
Until now, special care had to be taken to allow modification of object attributes, for example. With lvalue subroutines, you can directly affect scalars returned by subroutines.
直到目前为止,修改对象属性时需要费一些特别的心思,例如使用左值子程序,你就可以直接操作子程序返回的标量。
In this example, notice that multiple actions can be taken with this one form: An existing user can sign in, and a new user can register by entering additional account information.
注意,在本例中这个表单可以执行多个活动:现有用户可以登录,新用户可以通过输入附加账户信息进行注册。
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