尝试去做：尝试或尝试去做，强调行动，但不一定成功；试着做：带着尝试的想法去做。他试图开门，但失败了。他试图开门，但失败了。
Can any one help me please that how to post Json object to web service using c#? Actually I am trying to verify an App Store Transaction Receipt in C#.
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