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#include <mysql/mysql.h>
#include <stdio.h>
int main(){
MYSQL mysql;
MYSQL_ROW row;
MYSQL_RES *result;
unsigned int num_fields;
unsigned int i;
mysql_init(&mysql);
if (!mysql_real_connect(&mysql,"localhost","kevin","****","my_db",0,NULL,0))
{
fprintf(stderr, "Failed to connect to database: Error: %s\n",
mysql_error(&mysql));
}
else {
if(mysql_query(&mysql, "SELECT * FROM my_table"));
//here goes the error message <!-- s:o --><img src=\"{SMILIES_PATH}/icon_surprised.gif\" alt=\":o\" title=\"Surprised\"><!-- s:o -->)
else {
result = mysql_store_result(&mysql);
num_fields = mysql_num_fields(result);
while ((row = mysql_fetch_row(result)))
{
unsigned long *lengths;
lengths = mysql_fetch_lengths(result);
for(i = 0; i < num_fields; i++)
{
printf("[%.*s] \t", (int) lengths[i], row[i] ? row[i] : "NULL");
}
printf("\n");
}
}
}
return 0;
}
这是我的代码。但我把它不断给我这个错误:
1>------ Build started: Project: changedatamysql, Configuration: Release Win32 ------
1>Build started 20.9.2014 16:51:51.
1>InitializeBuildStatus:
1> Touching "Release\changedatamysql.unsuccessfulbuild".
1>ClCompile:
1> All outputs are up-to-date.
1> changedatamysql.cpp
1>changedatamysql.cpp(1): warning C4627: '#include <mysql/mysql.h>': skipped when looking for precompiled header use
1> Add directive to 'StdAfx.h' or rebuild precompiled header
1>changedatamysql.cpp(37): fatal error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "StdAfx.h"' to your source?
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.52
==========生成:0成功,1失败,0上最新,0已跳过======= ===
那么这是怎么回事? 即时通讯我试图让这个程序将数据发送到我的mysql数据库表。 所以我可以从我的本地主机/索引读取它好吗? 教程,任何帮助我的东西都是值得欢迎的。 预先感谢您!
好的,我在头文件和#include“stdafx.h”中添加了#includes到int main之前。 - >致命错误C1083:无法打开包含文件:'mysql.h':没有这样的文件或目录 1> – Jackdpkevin 2014-09-20 14:04:22
@Jackdpkevin那是因为你可能没有设置你的项目设置来告诉编译器在哪里找到MySQL头文件。我自己没有Visual Studio,所以我不知道它在哪里完成,您寻找类似“预处理器设置”或类似的东西,应该有一个设置来添加预处理器将查找头文件的路径。 – 2014-09-20 14:07:15
谢谢。会这样做! – Jackdpkevin 2014-09-20 14:08:58