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【ios 汇总 - 数据 容器】

时间:2014-01-25 17:30:27      阅读:354      评论:0      收藏:0      [点我收藏+]

dictionary

 遍历字典

NSLog(@"***遍历字典myClassDict如下:");
for (id key in myClassDict)
{
NSLog(@"key: %@ ,value: %@",key,[myClassDict objectForKey:key]);
}


[_surveyAnswers1 setObject:myArrayAnswers1 forKey:@"FirstKey"];


for (NSString *key in [cacheDict allKeys]) {}


array 

快速创建array 

//NSMutableArray *array = [NSMutableArray arrayWithObjects:  @"One",@"Two",@"Three",nil]; 


[
_list addObjectsFromArray:[indexlist copy]];

_filteredList = [_stringList filteredArrayUsingPredicate:[NSPredicatepredicateWithFormat:@"SELF contains[cd] %@", searchString]];

/*-------------数组枚举---------------*/      
//- (NSEnumerator *)objectEnumerator;从前向后  
//NSMutableArray *array = [NSMutableArray arrayWithObjects:  
@"One",@"Two",@"Three",nil];  
NSEnumerator *enumerator;  
enumerator = [array objectEnumerator];  
  
id thingie;  
while (thingie = [enumerator nextObject]) {  
    NSLog(@"thingie:%@",thingie);  
}  
  
//- (NSEnumerator *)reverseObjectEnumerator;从后向前  
//NSMutableArray *array = [NSMutableArray arrayWithObjects:  
@"One",@"Two",@"Three",nil];  
NSEnumerator *enumerator;  
enumerator = [array reverseObjectEnumerator];  
  
id object;  
while (object = [enumerator nextObject]) {  
    NSLog(@"object:%@",object);  
}  


  NSString

rang.location 指向的是 @"//" 的头一个字符
    NSRange range;
    range = [url
 rangeOfString:@"//"];
   
 if (range.length > 0) {
        url = [url
 substringFromIndex:range.location + range.length];
    }

从 // 之后截取
    range = [url rangeOfString:@"/"];
   
 if (range.length > 0) {
        url = [url
 substringFromIndex:range.location + 1];
    }

截取到 # ,不包含#
    range = [url
 rangeOfString:@"#"];
   
 if (range.length > 0 && range.location > 0) {
        url = [url
 substringToIndex:range.location];
    }


modulename = [NSStringstringWithUTF8String:(*itStr).c_str()];
NSString* welcomeInfo =[@"欢迎回来 "stringByAppendingString:nickName];
NSString *servantCmd = [NSString stringWithFormat:@"wnsxms.%@",@"getcommandlist"];


【ios 汇总 - 数据 容器】

原文:http://blog.csdn.net/goodeveningbaby/article/details/18750675

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