iphone - 消息：预期标识符

Question

为什么会出现这个错误？我认为我已经关闭了所有括号。这是代码：

  int i=0;

    while(i<count){

    if([[ageMatch rangeOfString:age].location != NSNotFound] && [[glassesSex rangeOfString:gender].location !=NSNotFound] && [[faceMatch rangeOfString:shape].location != NSNotFound]  ){ //Expected identifier
            [arrayNuovo insertObject:dictionary atIndex:i];

        }
        i++;
     }

Answer 1

你应该改变

if([[ageMatch rangeOfString:age].location != NSNotFound] && [[glassesSex rangeOfString:gender].location !=NSNotFound] && [[faceMatch rangeOfString:shape].location != NSNotFound]  )

到

 if([ageMatch rangeOfString:age].location != NSNotFound && 
    [glassesSex rangeOfString:gender].location !=NSNotFound && 
    [faceMatch rangeOfString:shape].location != NSNotFound  )

当您进行布尔测试时，您会喜欢[string rangeOfString:age].location != NSNotFound并且不要将它们包含在 [ 和 ] 中

Answer 2

使用此代码

while(i < count){
if(([ageMatch rangeOfString:age].location != NSNotFound) && ([glassesSex rangeOfString:gender].location !=NSNotFound) && ([faceMatch rangeOfString:shape].location != NSNotFound)  ){ //Expected identifier
        [arrayNuovo insertObject:dictionary atIndex:i];
            }
    i++;
}