Tcsh provides the built-in shell variable watch, which makes it easy to view who is logging in and out of the system.
tcsh提供了内置shell变量watch，可以通过它查看正在使用系统的用户。
Watch the variables being used in a function. If you notice a function using an out-of-scope variable more than once, store it in a local variable and use that instead.
仔细检查函数中所有使用的变量，如果有一个变量不是当前作用域定义的，而且使用了不止一次，那么我们就应该把这个变量保存在局部变量中，而使用这个局部变量来进行读写操作。
It allows you to watch which modules are being executed, which SQL statements are executing, and which variable values change as you navigate the Web site.
它允许您查看哪些模块正被执行，哪些sql语句正在执行，以及在您浏览Web站点时哪些变量值发生更改。
You can copy a LINQ variable and paste it into the Watch window or QuickWatch dialog box.
您可以复制LINQ变数并张贴到[监看式]视窗或[快速监看式]对话方块。
In this step, you watch the value of a variable as the program runs and deduce why the value is not what you might expect.
在本步骤中，您将在程序运行时观察变量的值，并推断为什么值与预期的不同。
In this step, you watch the value of a variable as the program runs and deduce why the value is not what you might expect.
在本步骤中，您将在程序运行时观察变量的值，并推断为什么值与预期的不同。
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