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                **一.被零整除報錯拋出DivisionByZeroError異常** ~~~ 1.1/0 2.intdiv(1,0) ~~~ **二.遵循關于浮點運算法則的IEEE-754標準,并以浮點數形式返回** #正無窮大INF,float類型 ~~~ 1.fdiv(1,0) var_dump(fdiv(1,0)); ~~~ #負無窮大-INF,float類型 ~~~ 2.fdiv(1,0) var_dump(fdiv(-1,0)); ~~~
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