NettetC语言中逗号运算符，表达式 a, b ，先计算表达式 a，不理会它的返回值并完成所有的副作用，然后计算表达式 b，返回该计算结果的类型和值。. 对于 x =(a = 2, b = 5, b++, a + b)，先 a = 2，再 b = 5，再 b++，该表达式的值为 5，b 再 ++ 后 b 为 6，再 a + b 即 2 + 6 为 8，返回 8，最终 x 等于 8。 Nettet18. sep. 2013 · This is a bad programming style. int a = 2; int b = a++ + a++; //right to left value of first a++=2 and then a=3 so second a++=3 after that a=4 b=3+2; b=5; int a = …

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Are int a = 5 and int a(5) equivalent in C++? - Stack Overflow

Nettet25. nov. 2013 · So the first keyword is "pointer to". Next, go back to the right and the attribute is (). That means the next keyword is "function that returns". Now go back to … Nettetint a = 5, b = 7, c; c = a++ + ++b; printf ("a = %d,b = %d,c = %d",a,b,c); return 0; } 结果如下： 其代码与c = (a++) + (++b);结果一样，说明是正确的，其按照下面顺序执行： 先 … Nettetwww.upu.int . Contact: Mr Javier Garcia . T + 41 31 350 35 38 . [email protected]. To: – UPU member countries and their – Members of the World Customs Organization … box office multiplier