九九乘法表、java、MySQL 编程题

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JavaScript 编写九九乘法表

<!doctype html><html > <head>    <meta charset="UTF-8">    <title>20171031</title> </head> <body><script>for( var a = 1; a < 10; a++ ){    for( var b = 1; b <= a; b++ )    {        document.write( b + "*" + a + "=" + a*b+"\t" );        document.write( " " );    }    document.write( "<br />" );}</script></body>  </html>

Java 编程题

package demo;public class Java3 {    public static void main(String[] args) {        TestTN tt=new TestTN();        tt.print();    }    }     class TestTN{     public void print(){        for(int j=1;j<=4;j++){            for(int i=1;i<=4;i++){            if(i!=j){            for(int k=1;k<=4;k++){                if(k!=j&&k!=i){                System.out.print(j);                System.out.print(i);                System.out.print(k);                System.out.print(" ");                                  }    }    }else         continue;        }    }}}

MySQL 编程题

/*Navicat MySQL Data TransferSource Server         : java96Source Server Version : 50556Source Host           : localhost:3306Source Database       : 10.30Target Server Type    : MYSQLTarget Server Version : 50556File Encoding         : 65001Date: 2017-10-31 09:30:04*/SET FOREIGN_KEY_CHECKS=0;-- ------------------------------ Table structure for 10.30-- ----------------------------DROP TABLE IF EXISTS `10.30`;CREATE TABLE `10.30` (  `id` int(10) NOT NULL AUTO_INCREMENT,  `Name` varchar(255) CHARACTER SET utf8 NOT NULL,  `Tel` bigint(122) NOT NULL,  ` Content` varchar(255) CHARACTER SET utf8 NOT NULL,  `Date` date NOT NULL,  PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=latin1;-- ------------------------------ Records of 10.30-- ----------------------------INSERT INTO `10.30` VALUES ('1', '张三', '13333663366', '大专毕业', '2006-10-11');INSERT INTO `10.30` VALUES ('2', '张四', '13612312331', '本科毕业', '2006-10-15');INSERT INTO `10.30` VALUES ('3', '小明', '13905333221', '中专毕业', '2006-10-15');--  有一新记录新增至表中INSERT INTO `10.30` VALUES ('4','小王',' 13254748547','高中毕业','2006-05-06')--  请写出删除姓名为张四的全部记录。DELETE FROM `10.30` WHERE id=2--  把张三的时间更新为当前系统时间UPDATE `10.30` SET NAME='张三',DATE=NOW() WHERE id=1

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