获取类的成员变量(ios)

unsignedintnumIvars;
Ivar*vars = class_copyIvarList(NSClassFromString(@"TestView"), &numIvars);
NSString*key=nil;
for(inti = 0; i < numIvars; i++) {
    Ivar thisIvar = vars[i];
    key = [NSStringstringWithUTF8String:ivar_getName(thisIvar)]; //获取成员变量的名字
    NSLog(@"variable name :%@", key);
    key = [NSStringstringWithUTF8String:ivar_getTypeEncoding(thisIvar)];//获取成员变量的数据类型
    NSLog(@"variable type :%@", key);
}

free(vars);