The if statement ACTS as simple error control, exiting our script if it does not find the file with a somewhat graceful error for our users.
if语句将用作简单的错误控制，如果由于用户的小失误而导致它未找到文件，则退出脚本。
Source control allows you to "roll back" to a previous iteration of a file to restore the status quo or to recover from an error.
源代码控制系统允许用户“回滚”到以前的文件版本，从而恢复以前的状态或从错误中恢复。
Note that this example demonstrates the basic syntax for this control, but does not demonstrate all the necessary error checking that should be done before saving the file.
请注意，此示例演示该控件的基本语法，但并不演示保存文件之前应该完成的所有必要的错误检查。
This error arises when a change is made to a file that is currently checked in to source-code control.
当更改当前签入到源代码控件的文件时，出现此错误。
Results By the use of the color standard coding and guide joint used in medical record card file management, improve work efficiency, control the medical record filing error rates.
结果通过采用色标编码与导卡联合应用于病案归档管理，提高了工作效率，控制了病案归档错误率。
Results By the use of the color standard coding and guide joint used in medical record card file management, improve work efficiency, control the medical record filing error rates.
结果通过采用色标编码与导卡联合应用于病案归档管理，提高了工作效率，控制了病案归档错误率。
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