Question

我的文字字符串如下所示

011597464952,01521545545,454545474,454545444|Hello this is were the message is.

基本上我希望不同字符串中的每个数字都能显示消息，例如

NSString *Number1 = 011597464952 
NSString *Number2 = 01521545545
etc
etc
NSString *Message = Hello this is were the message is.

我想从一个包含所有

的字符串中分离出来

Answer 1

我会使用-[NSString componentsSeparatedByString]：

NSString *str = @"011597464952,01521545545,454545474,454545444|Hello this is were the message is.";

NSArray *firstSplit = [str componentsSeparatedByString:@"|"];
NSAssert(firstSplit.count == 2, @"Oops! Parsed string had more than one |, no message or no numbers.");
NSString *msg = [firstSplit lastObject];
NSArray *numbers = [[firstSplit objectAtIndex:0] componentsSepratedByString:@","];

// print out the numbers (as strings)
for(NSString *currentNumberString in numbers) {
  NSLog(@"Number: %@", currentNumberString);
}

Answer 2

查看NSString componentsSeparatedByString或其中一个类似的API。

如果这是一组已知的固定结果，那么您可以使用结果数组并使用它：

NSString *number1 = [array objectAtIndex:0];    
NSString *number2 = [array objectAtIndex:1];
...

如果它是可变的，请查看NSArray API和objectEnumerator选项。

Answer 3

NSMutableArray *strings = [[@"011597464952,01521545545,454545474,454545444|Hello this is were the message is." componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@",|"]] mutableCopy];

NString *message = [[strings lastObject] copy];
[strings removeLastObject];

// strings now contains just the number strings
// do what you need to do strings and message

....

[strings release];
[message release];

Answer 4

objective-c有strtok()吗？

strtok函数根据一组分隔符将字符串拆分为子字符串。每个后续调用都会给出下一个子字符串。

substr = strtok(original, ",|");
while (substr!=NULL)
{
   output[i++]=substr;
   substr=strtok(NULL, ",|")
}

Answer 5

这是我使用的一个方便的功能：

///Return an ARRAY containing the exploded chunk of strings
///@author: khayrattee
///@uri: http://7php.com
+(NSArray*)explodeString:(NSString*)stringToBeExploded WithDelimiter:(NSString*)delimiter
{
    return [stringToBeExploded componentsSeparatedByString: delimiter];
}

将一个字符串拆分为不同的字符

5 个答案: