假设某表达式中包含int、long、unsigned、char类型的数据,则表达式最后的运算结果是()类型。
A.int
B.long
C.unsigned
D.char
A.int
B.long
C.unsigned
D.char
下列程序的功能是:求出ss字符串中指定字符c的个数,并返回此值。请编写函数int num(*char ss,char c)以实现程序要求,最后调用函数readwriteDat(),把结果输出到文件out.dat中(注:大小写字母有区别)。例如:若输入字符串“ss="123412132" , c=’1’”,则输出“3”。部分源程序已给出。请勿改动主函数main()和输出数据函数writeDat()的内容。#include #include #define M 81void readwriteDAT(); int num(char *ss,char c){ } main(){ char a[M],ch; clrscr(); printf("\nPlease enter a string:" );gets(a); printf("\nPlease enter a char;" );ch=getchar(); printf("\nThe number of the char is:%d\n" ,num(a,ch)); readwriteDAT();}viod readwriteDAT(){ int i; FILE *rf,*wf; char a[M],b[M],ch; rf=fopen("in.dat" ,"r" ); wf=fopen(" out.dat" ,"w" ); for(i=0;i<10;i++){ fscanf(rf," %s",a); fscanf(rf," %s" ,b); ch=*b; fprintf(wf," %c=%d\n:" ,ch,num(a,ch));} fclose(rf); fclose(wf);}
A. right(地址,4)=’8号’
B. right(’地址’,2)=’8号’
C. right(’地址’,4)=’8号’
D. right(地址,2)=’8号&rsquo
A、y%4==0
B、y%4==0 && y%100!=0
C、(y%4==0&&y%100!=0)||(y%400==0)
D、(y%4==0)||(y%400==0&&y%100!=0)
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