Interestingly, it's the second unexercised if block that is a concern.
有趣的是，所要关注的正是第二个没有被执行的if 块。
Thread 1 enters the if block, but is preempted by thread 2 before executing the line at //2.
线程1进入if代码块，但在执行 //2 处的代码行时被线程 2 预占。
When a call to the log method is found, we check to see if the program counter is outside the if block determined earlier.
找到对log方法的调用后，我们检查程序计数器是否在前面确定的if块外面。
Because I am not wrapping the (Out of Stock!) message in an HTML tag element, Razor can’t implicitly determine that the content within the @if block is the start of a content block.
由于我没有将消息“已售完！” 嵌套在HTML标签元素内，Razor不能隐式判断@if块中的内容是否是一个内容块的开始。
The straight forward approach would be to add a fourth IF block after looking for credentials from the form fields.
简单的方法是在寻找来自表单字段的凭证之后添加第四个IF块。
You see errors inside of the "if" block as shown in Figure 16.
您将看到“if”代码块内的错误，如图 16 所示。
You see errors inside of the "if" block as shown in Figure 16.
您将看到“if”代码块内的错误，如图 16 所示。
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