Question

这是我想要的输出 “SELECT * FROM wateat_tbl，其中名称如'％love％'或desc like'％love％'”;

其中爱是使用 r进入的文字现在我想以有效的方式写这个现在我正在做这个蹩脚的代码

    myStringPrt1=@"SELECT * FROM wateat_tbl where name like '%"

    NSString *trimmedString1 = [myStringPrt1 stringByTrimmingCharactersInSet:
                                [NSCharacterSet whitespaceAndNewlineCharacterSet]];

    myStringPrt2=UserText;// user input LOVE
    NSString *myStringPrt3=@"%' or desc like '%";
    NSString *myStringPrt4=@"%'";


    trimmedString1=[trimmedString1 stringByAppendingString:myStringPrt2];

    trimmedString1=[ trimmedString1 stringByAppendingString:myStringPrt3];
    trimmedString1=[ trimmedString1 stringByAppendingString:myStringPrt2];
    trimmedString1=[ trimmedString1 stringByAppendingString:myStringPrt4];
    NSLog(@"My string is  now =  %@", trimmedString1);

Answer 1


NSString* SQL_statement = [NSString stringWithFormat:@"SELECT * FROM wateat_tbl where name like '%@%%' or desc like '%%%@'", UserText, UserText];

在iphone上写这个的最好方法

1 个答案: