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//你的源码
int main()
{
return 0;
}
http://hi.csdn.net/attachment/201007/31/2545146_1280581009rkQw.jpg
package day07.MianXiangDuiXiang;
class Person{
String name;
int age;
}
//这里用到了extends就是继承,即Student继承Person
class Student extends Person{
String school;
}
public class JiCheng{
public static void main(String[] args){
Student s = new Student();
//访问Person类中的name属性
s.name = "张三";
//访问Person类总的age属性
s.age = 22;
//访问Student类中的school属性
s.school = "北京";
System.out.println("姓名: " + s.name + ", 年龄: " + s.age + ", 学校: " + s.school);
}
}
print()
val_sum = 0
for i in range(100):
exec("val_sum += val{0}".format(i))
print(val_sum)
[code=c]print()
val_sum = 0
for i in range(100):
exec("val_sum += val{0}".format(i))
print(val_sum)
[/code]print()
val_sum = 0
for i in range(100):
exec("val_sum += val{0}".format(i))
print(val_sum)
# 计算非数组变量的总和
for i in range(100):
exec("val{0} = {0}".format(i))
for i in range(100):
exec("print(val{0}, end = ' ')".format(i))
print()
val_sum = 0
for i in range(100):
exec("val_sum += val{0}".format(i))
print(val_sum)
Java code
?
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public class CreateSimpleExcelToDisk {
/**
* @作者:heasen
* @日期:2010-3-24
* @功能:手工构建一个简单格式的Excel
*/
private static List<Student> getStudent() throws Exception{
List list = new ArrayList();
SimpleDateFormat df = new SimpleDateFormat("yyyy-mm-dd");
Student user1 = new Student(1,"张三",16,df.parse("1997-03-12"));
Student user2 = new Student(2,"李四",17,df.parse("1996-08-12"));
Student user3 = new Student(3,"王五",26,df.parse("1985-11-12"));
list.add(user1);
list.add(user2);
list.add(user3);
return list;
}
public static void main(String[] args) throws Exception {
//第一步,创建一个webbook,对应一个Excel文件
HSSFWorkbook wb = new HSSFWorkbook();
//第二步,在webbook中添加一个sheet,对应Excel文件中的sheet
HSSFSheet sheet = wb.createSheet("学生表一");
//第三步,在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
HSSFRow row = sheet.createRow((int)0);
//第四步,创建单元格,并设置值表头 设置表头居中
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); //创建一个居中格式
HSSFCell cell = row.createCell((short)0);
cell.setCellValue("学号"); cell.setCellStyle(style);
cell = row.createCell((short)1);
cell.setCellValue("姓名"); cell.setCellStyle(style);
cell = row.createCell((short)2);
cell.setCellValue("年龄"); cell.setCellStyle(style);
cell = row.createCell((short)3);
cell.setCellValue("生日"); cell.setCellStyle(style);
//第五步,写入实体数据 实际应用中这些数据从数据库得到,
List list = CreateSimpleExcelToDisk.getStudent();
for(int i=0;i<list.size();i++){
row = sheet.createRow((int)i+1);
Student stu = (Student) list.get(i);
//第四步,创建单元格,并设置值
row.createCell((short)0).setCellValue((double)stu.getId());
row.createCell((short)1).setCellValue(stu.getName());
row.createCell((short)2).setCellValue((double)stu.getAge());
cell = row.createCell((short)3);
cell.setCellValue(new SimpleDateFormat("yyyy-mm-dd").format(stu.getBirth()));
}
//第六步,将文件存到指定位置
try {
FileOutputStream fout = new FileOutputStream("E:/students.xls");
wb.write(fout);
fout.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
update Contact set B=cast(cast(B as int)+@B as varchar(50)) where ...
if(you!=sb)
{
you=sb;
}
if(you!=sb)
{
you=sb;
}
if(you!=sb)
{
you=sb;
}
#include<stdio.h>
int main(){
return 0;
//我来试试~
}
Public Class Test
End Class
//only for test