例 Ch3 Lc /ch31.c*/ #include <stdio. h> maint int c char a; 65:a=B putchar(c); putchar('In); putchar(a) 运行结果:A B/*ch3_1.c*/ #include <stdio.h> main() { int c; char a; c=65; a='B'; putchar(c); putchar('\n'); putchar(a); } 运行结果：A B 例