main() {char a1='M',a2='m';printf("%c\n",(a1,a2));}为什么输出的是“m” 十分紧急!
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![main() {char a1='M',a2='m';printf(](/uploads/image/z/8842838-14-8.jpg?t=main%28%29+%7Bchar+a1%3D%27M%27%2Ca2%3D%27m%27%3Bprintf%28%22%25c%5Cn%22%2C%28a1%2Ca2%29%29%3B%7D%E4%B8%BA%E4%BB%80%E4%B9%88%E8%BE%93%E5%87%BA%E7%9A%84%E6%98%AF%E2%80%9Cm%E2%80%9D+%E5%8D%81%E5%88%86%E7%B4%A7%E6%80%A5%21)
main() {char a1='M',a2='m';printf("%c\n",(a1,a2));}为什么输出的是“m” 十分紧急!
main() {char a1='M',a2='m';printf("%c\n",(a1,a2));}为什么输出的是“m”
十分紧急!
main() {char a1='M',a2='m';printf("%c\n",(a1,a2));}为什么输出的是“m” 十分紧急!
(a1,a2)是一个逗号表达式,其值取最后一个,即a2.如(a1,a2,a3,a3.an)其值为an.