今天在写cshtml页面报错：

An error occurred during the compilation of a resource required to process this request. Please review the following specific error details and modify your source code appropriately.

Expected a "{" but found a "xxx". Block statements must be enclosed in "{" and "}". You cannot use single-statement control-flow statements in CSHTML pages. For example, the following is not allowed:
 
 @if(isLoggedIn)
 <p>Hello, @user</p>
 
 Instead, wrap the contents of the block in "{}":
 
 @if(isLoggedIn) {
 <p>Hello, @user</p>
 }

大概的中文意思是：

编译处理该请求所需的资源期间发生错误。请查看以下特定的错误详细信息，并适当地修改您的源代码。
E：\xxx \ Views \ Home \ ShowComment.cshtml

预期为“ {”，但找到了“ xxx”。块语句必须用“ {”和“}”括起来。您不能在CSHTML页面中使用单语句控制流语句。例如，不允许以下内容：@if（isLoggedIn）<p>您好，@user </ p>而是将块的内容包装在“ {}”中：@if（isLoggedIn）{<p>您好， @user </ p>}

提示已经很明确了，就是在cshtml页面不能使用单语句控制，也是就if（条件）要用大括号{}.如：

@if(isLoggedIn) {
 <p>Hello, @user</p>
 }