题目内容

抛出异常应该使用的关键字是()。

A. catch
B. raise
C. finally
D. throws

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要想在Python程序中主动拋出异常,可以使用和语句。

assert语句常用在程序的某个位置确认必须满足指定条件,常和异常处理结构一起使用。()

A. 对
B. 错

1编写一个计算减法的方法,当第一个数小于第二个数时,抛出“被减数不能大于减数"的异常.

Read Text D and finish the following exercises.1) __________ signaled the end of an era and the faint hope that one day the Beatles might get together again had gone forever.2) George Harrison, John Lennon, Paul McCartney, and Ringo Starr formed the Beatles in ________ in 1960. a. Hamburg b. New York c. Liverpool3) At first, the themes of the Beatles were precisely those that occupied and concerned their young audience; later, they reflected the climate of the 1960s and sang of social ________ and political ________.

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