Question

我必须绑定Json Data，带有字符串格式的数据在标签ok中绑定，但我不能在标签中绑定整数或浮点值。是否有任何语法来绑定标签中的这些类型的值？

        NSDictionary* info = [NSDictionary dictionaryWithObjectsAndKeys:

                      showcost.text = [loans objectForKey:@"Cost"],
                      showname.text =  [loans objectForKey:@"Name"],nil];

我收到Name，但我无法绑定Cost（答案是12.34）。请给我一个想法继续。

Answer 1

对于整数值

int cost = [[loans objectForKey:@"Cost"]intValue];
showcost.text = [NSString stringWithFormat:@"%d",cost];

表示浮动值

float cost = [[loans objectForKey:@"Cost"]floatValue];
showcost.text = [NSString stringWithFormat:@"%f",cost];

Answer 2

如果cost是float类型，你可以使用stringWithFormat为它创建一个字符串值，以将十进制浮点数打印为字符串：

showcost.text = [NSString stringWithFormat:@"%f", [loans objectForKey:@"Cost"]];

Answer 3

您可以将字符串文字的属性用作

showcost.text =[NSString stringWithFormat:@"%f",[[loans objectForKey:@"Cost"]floatValue]];

将整数值绑定到标签中

3 个答案: