#include void mian() { int a,b; a=5,b=4; if(getchar()=='+') printf("%d+%d=%d",a,b,a+b)
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![#include void mian() { int a,b; a=5,b=4; if(getchar()=='+') printf(](/uploads/image/z/10176145-25-5.jpg?t=%23include+void+mian%28%29+%7B+int+a%2Cb%3B+a%3D5%2Cb%3D4%3B+if%28getchar%28%29%3D%3D%27%2B%27%29+printf%28%22%25d%2B%25d%3D%25d%22%2Ca%2Cb%2Ca%2Bb%29)
#include void mian() { int a,b; a=5,b=4; if(getchar()=='+') printf("%d+%d=%d",a,b,a+b)
#include void mian() { int a,b; a=5,b=4; if(getchar()=='+') printf("%d+%d=%d",a,b,a+b)
#include void mian() { int a,b; a=5,b=4; if(getchar()=='+') printf("%d+%d=%d",a,b,a+b)
计算两个数的和
如果键盘输入+即getchar()=='+'获得键盘输入来判断是否计算,输入其他的程序会结束
输入+,会输入两个数的和