单选题有以下程序:#include #include typedef struct{ char name[10]; char sex; int age;}STU;void fun(STU t){ strcpy(t.name,Tong); t.age++;}main(){ STU s[2] = {Hua, 'm', 18, Qin, 'f', 19}; fun(s[1]); printf(%s,%d,%s,%d, s[0].name, s[0].age, s[1].name, s[1].age);}程序运行后的输出结果是(  )。AHua,19,Tong,19BHua,18,Tong,20CTong,19,Qin,19DHua,19,Tong,19

单选题
有以下程序:#include #include typedef struct{ char name[10]; char sex; int age;}STU;void fun(STU t){ strcpy(t.name,Tong); t.age++;}main(){ STU s[2] = {Hua, 'm', 18, Qin, 'f', 19}; fun(s[1]); printf(%s,%d,%s,%d, s[0].name, s[0].age, s[1].name, s[1].age);}程序运行后的输出结果是(  )。
A

Hua,19,Tong,19

B

Hua,18,Tong,20

C

Tong,19,Qin,19

D

Hua,19,Tong,19


参考解析

解析:
程序执行过程为:定义STU类型数组,长度为2,并为其初始化。调用函数fun(s[1])将变量s[1]值传入函数,则t.name= "Qin",t.sex= 'f',t.age = 19。调用函数strcpy使t.name = "Tong",t.age = 20,函数调用结束。注意值传递时对形参的操作不会改变实参的值,结构体数组中元素并没有发生改变,答案选择D选项。

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