见以下代码及关键性注释：

#include <sqlite3.h>
 #include <string>
 #include <stdio.h>
 
 using namespace std;
 
 void doTest()
 {
     sqlite3* conn = NULL;
     //1. 打开数据库
     int result = sqlite3_open("D:/mytest.db",&conn);
     if (result != sqlITE_OK) {
         sqlite3_close(conn);
         return;
     }
     const char* createTablesql = 
         "CREATE TABLE TESTTABLE (int_col INT,float_col REAL,string_col TEXT)";
     sqlite3_stmt* stmt = NULL;
     int len = strlen(createTablesql);
     //2. 准备创建数据表，如果创建失败，需要用sqlite3_finalize释放sqlite3_stmt对象，以防止内存泄露。
     if (sqlite3_prepare_v2(conn,createTablesql,len,&stmt,NULL) != sqlITE_OK) {
         if (stmt)
             sqlite3_finalize(stmt);
         sqlite3_close(conn);
         return;
     }
     //3. 通过sqlite3_step命令执行创建表的语句。对于DDL和DML语句而言，sqlite3_step执行正确的返回值
     //只有sqlITE_DONE，对于SELECT查询而言，如果有数据返回sqlITE_ROW，当到达结果集末尾时则返回
     //sqlITE_DONE。
     if (sqlite3_step(stmt) != sqlITE_DONE) {
         sqlite3_finalize(stmt);
         sqlite3_close(conn);
         return;
     }
     //4. 释放创建表语句对象的资源。
     sqlite3_finalize(stmt);
     printf("Succeed to create test table now.\n");
 
     int insertCount = 10;
     //5. 构建插入数据的sqlite3_stmt对象。
     const char* insertsql = "INSERT INTO TESTTABLE VALUES(%d,%f,'%s')";
     const char* testString = "this is a test.";
     char sql[1024];
     sqlite3_stmt* stmt2 = NULL;
     for (int i = 0; i < insertCount; ++i) {
         sprintf(sql,insertsql,i,i * 1.0,testString);
         if (sqlite3_prepare_v2(conn,sql,strlen(sql),&stmt2,NULL) != sqlITE_OK) {
             if (stmt2)
                 sqlite3_finalize(stmt2);
             sqlite3_close(conn);
             return;
         }
         if (sqlite3_step(stmt2) != sqlITE_DONE) {
             sqlite3_finalize(stmt2);
             sqlite3_close(conn);
             return;
         }
         printf("Insert Succeed.\n");
     }
     sqlite3_finalize(stmt2);
     //6. 为了方便下一次测试运行，我们这里需要删除该函数创建的数据表，否则在下次运行时将无法
     //创建该表，因为它已经存在。
     const char* dropsql = "DROP TABLE TESTTABLE";
     sqlite3_stmt* stmt3 = NULL;
     if (sqlite3_prepare_v2(conn,dropsql,strlen(dropsql),&stmt3,NULL) != sqlITE_OK) {
         if (stmt3)
             sqlite3_finalize(stmt3);
         sqlite3_close(conn);
         return;
     }
     if (sqlite3_step(stmt3) == sqlITE_DONE) {
         printf("The test table has been dropped.\n");
     }
     sqlite3_finalize(stmt3);
     sqlite3_close(conn);
 }
 
 int main()
 {
     doTest();
     return 0;
 }
 //输出结果如下：
 //Succeed to create test table now.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //Insert Succeed.
 //The test table has been dropped.