Ios 无法将格式化字符串插入sqlite

我使用“由字符串连接的组件”连接了三个对象。joinedString的NSLog提供了以下信息：

joined string  is (
"722.3300",
"4924.6700",
"225.38"
)

当我将其添加到数组中时，显示如下所示：

array objects are:

   {  
        "obj1",
        "obj2",
         "(\n    \"722.3300\",\n    \"4924.6700\",\n    \"225.38\"\n)",
         "obj4"
     }

我试图将这些值插入到sqlite中

      insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES (\"%@\")",[array objectatIndex:0]];    //this executes perfectly

      insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES (\"%@\")",[array objectatIndex:1]];     //this executes perfectly

      insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES (\"%@\")",[array objectatIndex:2]];    //oops...somethings wrong here

      insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES (\"%@\")",[array objectatIndex:3]];        //this executes perfectly

---

是否有其他方法插入连接的字符串？请在这个问题上帮助我。

您应该使用单引号（'）而不是双引号（“）来表示sqlite字符串

insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')",[array objectatIndex:0]];
insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')",[array objectatIndex:1]];
insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')",[array objectatIndex:2]];
insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')",[array objectatIndex:3]];

如果要插入的字符串包含单引号，则应使用转义。请参阅

---

您的“连接字符串”是NSArray的

描述
转储。（可能您使用了
组件通过字符串连接
，但使用了原始数组，而不是结果NSString？？）（并且您的问题缺少任何有意义的代码。）你指的是原始数组吗？我将结果字符串存储到数组中，并尝试将数组值存储到数据库中。
insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')", [[array objectatIndex:0] stringByReplacingOccurrencesOfString:@"'" withString:@"''"]];
insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')", [[array objectatIndex:1] stringByReplacingOccurrencesOfString:@"'" withString:@"''"]];
insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')", [[array objectatIndex:2] stringByReplacingOccurrencesOfString:@"'" withString:@"''"]];
insertString=[NSString stringWithFormat:@"INSERT INTO MY_T (field1) VALUES ('%@')", [[array objectatIndex:3] stringByReplacingOccurrencesOfString:@"'" withString:@"''"]];