A. auto enum include B swith typedef continueC signed union scanf D if struct type2. 下面四个选项中,全是不合法的用户标识符的是:A、A P_0 do B、float la0 _AC、b-a goto int D、_123 temp INT3. 设a=1,b=2,c=3,d=4,则表达式:a=10 or a<=0 B)a>=10|a<=0C)a>=10&&a<=0 D)a>=10 ||a<=0
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你打错的有么?32个关键字:auto break case char const continue defaultdo double else enum extern float for goto if int long register return short signed static sizeof struct switchtypedef union unsigned void volatile while 2C3D4C5D
a. auto enum include 错,include不是 b switch typedef continue 正确 c signed union scanf 错,scanf不是 d if struct type 错,type不是 所以,答案选b 附c语言32个关键字 数据定义有关(20): char double float int long short unsigned signed void union struct enum auto extern register static const volatile typedef sizeof流程控制有关(12): if else switch default case break while do for continue goto return