expected expression 一般为 标点符号引起的警告 () 或{}
// 使用 core foundation 框架,ARC环境下需要:(__bridge NSString*) 修饰或(__bridge id)修饰
NSString * s = (id) (__bridge NSString*)kSecAttrAccount;
[wrapper setObject:@"<账号>" forKey:(__bridge id)kSecAttrAccount ];
expected expression __bridge,布布扣,bubuko.com
原文地址:http://blog.csdn.net/u013020103/article/details/30491117