最近，成都龙舟路发生一则意外，这次悲剧的发生让人感觉到内心悲痛，有一位老人照常经过人行道，运渣车驾驶员不断的按喇叭，老人在听到之后往后退，但不幸的是正好被卷入到车底当场导致碾压导致死亡。事情发生开发者
I have a sample program, which needs to execute 3 methods in a particular order. And after executing each method, should do error handling. Now i did this in a normal fashion, w/o using delegates like
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