iOS 基础类解析 - NSString

时间 2014-05-01 07:41:20  CSDN博客

原文  http://blog.csdn.net/opengl_es/article/details/24829203

主题 iOS开发

创建和初始化字符串  
Creating and Initializing Strings 

• + string
• – init
• – initWithBytes:length:encoding:
• – initWithBytesNoCopy:length:encoding:freeWhenDone:
• – initWithCharacters:length:
• – initWithCharactersNoCopy:length:freeWhenDone:
• – initWithString:
• – initWithCString:encoding:
• – initWithUTF8String:
• – initWithFormat:
• – initWithFormat:arguments:
• – initWithFormat:locale:
• – initWithFormat:locale:arguments:
• – initWithData:encoding:
• + stringWithFormat:
• + localizedStringWithFormat:
• + stringWithCharacters:length:
• + stringWithString:
• + stringWithCString:encoding:
• + stringWithUTF8String:
• + stringWithCString:    Deprecated in iOS 2.0
• + stringWithCString:length:    Deprecated in iOS 2.0
• – initWithCString:    Deprecated in iOS 2.0
• – initWithCString:length:    Deprecated in iOS 2.0
• – initWithCStringNoCopy:length:freeWhenDone:    Deprecated in iOS 2.0

从一个文件创建和初始化字符串  
Creating and Initializing a String from a File 

• + stringWithContentsOfFile:encoding:error:
• – initWithContentsOfFile:encoding:error:
• + stringWithContentsOfFile:usedEncoding:error:
• – initWithContentsOfFile:usedEncoding:error:
• + stringWithContentsOfFile:    Deprecated in iOS 2.0
• – initWithContentsOfFile:    Deprecated in iOS 2.0

从一个 URL 创建和初始化字符串  
Creating and Initializing a String from an URL 

• + stringWithContentsOfURL:encoding:error:
• – initWithContentsOfURL:encoding:error:
• + stringWithContentsOfURL:usedEncoding:error:
• – initWithContentsOfURL:usedEncoding:error:
• + stringWithContentsOfURL:    Deprecated in iOS 2.0
• – initWithContentsOfURL:    Deprecated in iOS 2.0

将字符串内容写到文件或 URL  
Writing to a File or URL 

• – writeToFile:atomically:encoding:error:
• – writeToURL:atomically:encoding:error:
• – writeToFile:atomically:    Deprecated in iOS 2.0
• – writeToURL:atomically:    Deprecated in iOS 2.0

获取字符串长度  
Getting a String’s Length 

• – length
• – lengthOfBytesUsingEncoding:
• – maximumLengthOfBytesUsingEncoding:

获取字符和字节  
Getting Characters and Bytes 

• – characterAtIndex:
• – getCharacters:range:
• – getBytes:maxLength:usedLength:encoding:options:range:remainingRange:
• – getCharacters:    Deprecated in iOS 4.0

获取 C 字符串  
Getting C Strings 

• – cStringUsingEncoding:
• – getCString:maxLength:encoding:
• – UTF8String
• – cString    Deprecated in iOS 2.0
• – cStringLength    Deprecated in iOS 2.0
• – getCString:    Deprecated in iOS 2.0
• – getCString:maxLength:    Deprecated in iOS 2.0
• – getCString:maxLength:range:remainingRange:    Deprecated in iOS 2.0
• – lossyCString    Deprecated in iOS 2.0

拼接字符串  
Combining Strings 

• – stringByAppendingFormat:
• – stringByAppendingString:
• – stringByPaddingToLength:withString:startingAtIndex:

拆分字符串  
Dividing Strings 

• – componentsSeparatedByString:
• – componentsSeparatedByCharactersInSet:
• – stringByTrimmingCharactersInSet:
• – substringFromIndex:
• – substringWithRange:
• – substringToIndex:

查找字符和子字符串  
Finding Characters and Substrings 

• – rangeOfCharacterFromSet:
• – rangeOfCharacterFromSet:options:
• – rangeOfCharacterFromSet:options:range:
• – rangeOfString:
• – rangeOfString:options:
• – rangeOfString:options:range:
• – rangeOfString:options:range:locale:
• – enumerateLinesUsingBlock:
• – enumerateSubstringsInRange:options:usingBlock:

替换字符串  
Replacing Substrings 

• – stringByReplacingOccurrencesOfString:withString:
• – stringByReplacingOccurrencesOfString:withString:options:range:
• – stringByReplacingCharactersInRange:withString:

确定行和段落的范围  
Determining Line and Paragraph Ranges 

• – getLineStart:end:contentsEnd:forRange:
• – lineRangeForRange:
• – getParagraphStart:end:contentsEnd:forRange:
• – paragraphRangeForRange:

确定组成字符的顺序*  
Determining Composed Character Sequences 

• – rangeOfComposedCharacterSequenceAtIndex:
• – rangeOfComposedCharacterSequencesForRange:

将字符串内容转换成属性列表  
Converting String Contents Into a Property List 

• – propertyList
• – propertyListFromStringsFileFormat

识别和比较字符串  
Identifying and Comparing Strings 

• – caseInsensitiveCompare:
• – localizedCaseInsensitiveCompare:
• – compare:
• – localizedCompare:
• – compare:options:
• – compare:options:range:
• – compare:options:range:locale:
• – localizedStandardCompare:
• – hasPrefix:
• – hasSuffix:
• – isEqualToString:
• – hash

拆叠字符串*  
Folding Strings 

• – stringByFoldingWithOptions:locale:

获取公共的前缀  
Getting a Shared Prefix 

• – commonPrefixWithString:options:

改变大小写  
Changing Case 

• – capitalizedString
• – capitalizedStringWithLocale:
• – lowercaseString
• – lowercaseStringWithLocale:
• – uppercaseString
• – uppercaseStringWithLocale:

使用映射获取多个字符串*  
Getting Strings with Mapping 

• – decomposedStringWithCanonicalMapping
• – decomposedStringWithCompatibilityMapping
• – precomposedStringWithCanonicalMapping
• – precomposedStringWithCompatibilityMapping

获取数字值  
Getting Numeric Values 

• – doubleValue
• – floatValue
• – intValue
• – integerValue
• – longLongValue
• – boolValue

处理字符编码  
Working with Encodings 

• + availableStringEncodings
• + defaultCStringEncoding
• + localizedNameOfStringEncoding:
• – canBeConvertedToEncoding:
• – dataUsingEncoding:
• – dataUsingEncoding:allowLossyConversion:
• – description
• – fastestEncoding
• – smallestEncoding

处理路径  
Working with Paths 

• + pathWithComponents:
• – pathComponents
• – completePathIntoString:caseSensitive:matchesIntoArray:filterTypes:
• – fileSystemRepresentation
• – getFileSystemRepresentation:maxLength:
• – isAbsolutePath
• – lastPathComponent
• – pathExtension
• – stringByAbbreviatingWithTildeInPath
• – stringByAppendingPathComponent:
• – stringByAppendingPathExtension:
• – stringByDeletingLastPathComponent
• – stringByDeletingPathExtension
• – stringByExpandingTildeInPath
• – stringByResolvingSymlinksInPath
• – stringByStandardizingPath
• – stringsByAppendingPaths:

处理 URL  
Working with URLs 

• – stringByAddingPercentEscapesUsingEncoding:
• – stringByReplacingPercentEscapesUsingEncoding:
• – stringByAddingPercentEncodingWithAllowedCharacters:
• – stringByRemovingPercentEncoding

语言标记和分析*  
Linguistic Tagging and Analysis 

• – enumerateLinguisticTagsInRange:scheme:options:orthography:usingBlock:
• – linguisticTagsInRange:scheme:options:orthography:tokenRanges: