Question

我从webservice收到一个像下面一个字符串的回复 -

brand = company %% samsung @@ modelnumber = webmodel %% GT1910 @@ Sim = Single %% SingleSim @@ 3g = yes %% Yes @@ wifi = yes %% yes（2.1 mbps upto）

我很难混淆我的回复，如下面的那样 -

brand=samsung
modelnumber=GT1910
Sim=SingleSim
3g=Yes
wifi=(2.1 mbps upto)

我尝试删除特殊字符(@@ and %%)

specialString = [specialString stringByReplacingOccurrencesOfString:@"@@" withString:@"\n"];
specialString = [specialString stringByReplacingOccurrencesOfString:@"%%" withString:@"\n"];
specialString= [specialString stringByReplacingOccurrencesOfString:@" " withString:@""];

我的输出是 -

brand=company
samsung
modelnumber=webmodel
GT1910
Sim=Single
SingleSim
3g=yes
Yes
wifi=yes
(2.1 mbps upto)

如何删除不需要的单词。

Answer 1

您不能使用简单的查找和替换，因为原始字符串的某些部分是您不想要的。

未经测试，但这可能有效：

NSArray *parts = [specialstring componentsSeparatedByString:@"@@"];
NSMutableArray *result = [[NSMutableArray alloc] init];
for(NSString *piece in parts) {
    NSArray *pairs = [piece componentsSeparatedByString:@"="];
    if([pairs count] > 1) {
        NSString *key = [pairs objectAtIndex:0];
        NSString *values = [pairs objectAtIndex:1];
        NSArray *avalues = [values componentsSeparatedByString:@"%%"];
        [result addObject:[NSString stringWithFormat:@"%@=%@", key, [avalues lastObject]]];
    }
}

NSLog(@"%@", [result componentsJoinedByString:@"\n"]);
// [result release]; // Uncomment if ARC is turned off

首先按@@拆分并迭代数组。然后按=拆分以获得左侧的键（索引0）。采取右侧（索引1）并按%%拆分并使用最后一个值。

Answer 2

如下所示修剪它将起作用

NSString *strRes = @"brand=company%%samsung@@modelnumber=webmodel%%GT1910@@Sim=Single%%SingleSim@@3g=yes%%Yes@@wifi=yes%%yes(2.1 mbps upto)";
strRes = [strRes stringByReplacingOccurrencesOfString:@"=" withString:@"--"];
strRes = [strRes stringByReplacingOccurrencesOfString:@"@@" withString:@"\n"];
NSRange rangeForTrim;
while ((rangeForTrim = [strRes rangeOfString:@"--[^%%]+%%" options:NSRegularExpressionSearch]).location != NSNotFound)
    strRes = [strRes stringByReplacingCharactersInRange:rangeForTrim withString:@"="];

NSLog(@"%@",strRes);

Answer 3

好吧，我不能马上编写代码，但这就是你要做的事情：

将所有%%替换为(space)
将所有@@替换为\n
删除=和(space)

在Objective - C中格式化字符串

3 个答案: