1. 使用方法参见demo.cpp
2. 使用"?"问号作为参数的占位符
3. 支持格式化的数据类型有如下:
   1. 基本数字数据类型 bool, char, char16_t, char32_t, wchar_t, short, int, long, long long, float, double
   2. 条目1)对应的无符号版本的数据类型
   3. char*, const char*, string, char[]
4. 字符串类型支持防御SQL注入, 不过需要在sql_format/sf_escape.h文件中定义的escape函数(里面有几个默认实现可以参考)
5. 此库只包含头文件,正常使用包含头文件sql_format/sf_formatter.h 即可

MYSQL mysql;
long uid = 1024; // 用户id
std::string product = "book"; // 产品名称
const char* remark = "newest"; // 备注关键字
int startIndex = 10; // 分页开始
int pageSize = 10; // 分页大小

std::string sql = SqlFormat::Format(mysql, "SELECT * FROM t_order WHERE uid=? AND remark=? LIMIT ?,?", uid, remark, startIndex, pageSize);
// SELECT * FROM t_order WHERE uid=1024 AND remark='newest' LIMIT 10,10

std::string sql = SqlFormat::Format(mysql, "SELECT * FROM t_order WHERE remark LIKE ?", like_lr(remark));
// SELECT * FROM t_order WHERE remark LIKE '%newest%'

std::list<std::string> productList = {"book", "iphone", "cup"};
std::string sql = SqlFormat::Format(mysql, "SELECT * FROM t_order WHERE product IN ?", in_range(productList));
// SELECT * FROM t_order WHERE product IN ('book','iphone','cup')

bool searchRemark = false; // 是否是搜索备注
bool paging = true; // 是否分页

std::string sql = "SELECT * FROM t_order WHERE uid=? ";
SqlFormat::Formatter formatter(uid);

if (searchRemark)
{
sql += "AND remark=? ";
formatter.append(remark);
}

if (paging)
{
sql += "LIMIT ?,? ";
formatter.append(startIndex, pageSize);
}

std::string sql = formatter.format(mysql, sql);
// SELECT * FROM t_order WHERE uid=1024 LIMIT 10,10