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2015-08-15
age=getAge(numPeople-1)+2;
等號(hào)右側(cè)的getAge(numPeople-1)是個(gè)函數(shù)調(diào)用，調(diào)用時(shí)傳遞的參數(shù)是numPeople-1。等函數(shù)執(zhí)行完，將其返回值加上2，再賦值給等號(hào)左側(cè)的age。