You are creating a console application named App1. App1 will validate user input for order entries. You are developing the following code segment (line numbers are included for reference only): You need to complete the code segment. The solution must ensure that prices are positive and have two decimal places. Which code should you insert at line 03?
正解:D
Explanation/Reference: Explanation: Regex.IsMatch Method (String, String) Indicates whether the specified regular expression finds a match in the specified input string.