Try ~ Catch ~ Finally ~ Return answer

The answer is:

• Finally 2
• Main 3
• Over 3

After removing the 100 rows, it is:

• Finally 2
• Main 1
• Over 2

Address: http://blog.csdn.net/quanquanfly/archive/2010/11/15/6010517.aspx.pdf:

1. First try, catch will execute finally no matter which one is triggered; so because an error is thrown in try, Catch catch error, I = 1, and press the value of I to stack; when finally is executed, print ++ 1, I = 2 to get finally 2; return ++ I, I = 3 in finally, and press the I value on the stack, therefore, the return value of the function is based on the stack's advanced post-export principle. The result is 3, print: Main 3, and print: "over" + I = over 3.
2. Because an error is thrown in try, Catch catch errors, I = 1, and press the I value to stack; when finally is executed, print ++ 1, I = 2, and get finally 2; output stack, get value 1, print: Main 1; finally print: "over" + I = over 2.