删除#example iOS 之后的文字

Question

如何在单词后删除 NSString 或 NSArray 的一部分，例如 #gallery-1 还是两个 "skip lines" 之后？以及每次出现的句子是否可以删除？

我想擦除此 NSString（或 NSArray）中 #gallery-1 之后或 2 个跳过行之后的所有文本并擦除 "CLICK HERE FOR LIVE PEAK WEBCAM" :

3rd March
Swell is 5 foot and cross shore, bitter in the cold wind. Maybe streedagh.

High tide: 1703 3.6m     CLICK HERE FOR LIVE PEAK WEBCAM
Low Tide: 1041 0.8m
3 day forecast to March 5th
Good swell all weekend but the winds are changing. Keep in an eye for gaps in the wind.


            #gallery-1 {
                margin: auto;
            }
            #gallery-1 .gallery-item {
                float: left;
                margin-top: 10px;
                text-align: center;
                width: 50%;
            }
            #gallery-1 img {
                border: 2px solid #cfcfcf;
            }
            #gallery-1 .gallery-caption {
                margin-left: 0;
            }
            /* see gallery_shortcode() in wp-includes/media.php */








 
 Wind Charts
         Wind Guru       XC Weather       Buoy Weather
Swell Charts
                                     Magic Seaweed      MSM WAM          Marine Institute
Pressure, Weather, Tides
                      BBC Pressure      Met Eireann      Irish Tide Tables

我想获得：

3rd March
    Swell is 5 foot and cross shore, bitter in the cold wind. Maybe streedagh.

    High tide: 1703 3.6m     CLICK HERE FOR LIVE PEAK WEBCAM
    Low Tide: 1041 0.8m
    3 day forecast to March 5th
    Good swell all weekend but the winds are changing. Keep in an eye for gaps in the wind.

Answer 1

嗯嗯，我想出了一些方法，其中输入是上面的字符串。

如您所说，这会将字符串的组成部分分开 "skipped lines"。

let finalComponents = input.componentsSeperatedByString("\n\n")
let wantedInfo = finalComponents[0] as String

去掉"CLICK HERE FOR LIVE PEAK WEBCAM":

let unwanted = "CLICK HERE FOR LIVE PEAK WEBCAM"
let finalString = wantedInfo.stringByReplacingOccurrencesOfString(unwanted, replacement:"")

Answer 2

非常简单。只需使用 NSString class.

中的实例方法

移除事件

NSString *originalString = @"#gallery-1 {margin: auto;}#gallery-1 .gallery-item {float: left;margin-top: 10px;text-align: center;width: 50%;}";

NSString *processedString = [originalString stringByReplacingOccurrencesOfString:@"#gallery-1" withString:@""];

显然，原始字符串可以包含更长的多次出现的字符串。因此，如果它包含更多它们，所有出现的地方都将以单行方法为您替换。真的再简单不过了。

拆分

NSString *originalString = @"3rd March Swell is 5 foot and cross shore, bitter in the cold wind. Maybe streedagh.     High tide: 1703 3.6m     CLICK HER FOR LIVE PEAK WEBCAM  Low Tide: 1041 0.8m    3 day forecast to March 5th    Good swell all weekend but the winds are changing. Keep in an eye for gaps in the wind.#gallery-1 {margin: auto;}#gallery-1 .gallery-item {float: left;margin-top: 10px;text-align: center;width: 50%;}";

NSString *processedString = [[originalString componentsSeparatedByString:@"#gallery"] firstObject];

这里的字符串被分成了很多部分（每一个部分都是一个字符串，基本上是把文本切成小块），"delimiter" 是任何作为参数的东西。所有组件都在 NSArray 中，我们只需要第一个。

删除#example iOS 之后的文字

Delete text after #example iOS

ios

objective-c

nsstring

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