short s1 = 1; s1 = s1 +

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short s1 = 1; s1 = s1 + 1;有什么错 short s1 = 1; s1 += 1;有什么错

参考答案:

正确答案:
答:short s1 = 1; s1 = s1 + 1;有错,s1是short型,s1+1是int型,不能显式转化为short型。可修改为s1 =(short)(s1 + 1) 。short s1 = 1; s1 += 1正确。