有以下程序 include<stdio.h> inta=1,b=2; yoidfunl(inta,intb) {printf(%d%d,a,b);} yoidf
有以下程序 include<stdio.h> inta=1,b=2; yoidfunl(inta,intb) {printf(%d%d,a,b);} yoidfun2() {a=3;b=4;} main() {funl(5,6);fun20; printf(%d%d\n,a,b); } 程序运行后的输出结果是
A.3456
B.1256
C.5612
D.5634