while(!
问题描述：
while(!
答
1 !x!=0表示(!x)!=0,!运算优先于!=运算.
2 在C语言中,若有a!=0,则查以简写为a.因此!x!=0可以简写为!x.即
while(!x!=0) 或以简写为：
while(!x) 还可以写为：
while(x==0)
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