swiftlet plus,plus多少钱

1,plus多少钱6100六千多 。
2 , 如何对URL字符串进行百分号编码RFC3986 编码查询字符串在 RFC3986 的第2.3节列出了你不需要百分号编码的字符,因为它们在URL中没有特殊的含义 。ALPHA / DIGIT / “-” / “.” / “_” / “~”α/数字/”-”/”.”/”_”第3.4节也解释了因为查询往往会本身包含一个URL,最好不要百分号编码斜杠(“/”)和问号(“?”) 。这也是受欢迎的iOS HTTP网络库Alamofire采取的方法,这给了我信心 。因此,用RFC 3986编码一个兼容性的查询,我们可以百分号编码如上所述以外的所有字符 。这很简单 , 如果我们首先构建一组允许的字符,然后用stringByAddingPercentEncodingWithAllowedCharacters去编码剩余的 。注意:苹果已经在iOS 9中弃用了stringByAddingPercentEscapesUsingEncoding或CFURLCreateStringByAddingPercentEscapes这两个方法 。Swift首先,swift String extension:extension Stringfunc stringByAddingPercentEncodingForRFC3986() -> String?let unreserved = "-._~/?"let allowed = NSMutableCharacterSet.alphanumericCharacterSet()allowed.addCharactersInString(unreserved)return stringByAddingPercentEncodingWithAllowedCharacters(allowed)}}Object-C我们可以用Object-C的NSString的分类来做相同的事 。@implementation NSString (URLEncoding)- (nullable NSString *)stringByAddingPercentEncodingForRFC3986NSString *unreserved = @"-._~/?";NSMutableCharacterSet *allowed = [NSMutableCharacterSet alphanumericCharacterSet];[allowed addCharactersInString:unreserved];return [self stringByAddingPercentEncodingWithAllowedCharacters: allowed];}@end用例// Swiftlet query = "one&two =three"let encoded = query.stringByAddingPercentEncodingForRFC3986()// "one%26two%20%3Dthree"// Objective-CNSString *query = @"one&two =three";NSString *encoded = [query stringByAddingPercentEncodingForRFC3986];// "one%26two%20%3Dthree"对x-www-form-urlencoded进行编码推荐W3C HTML5 对表单数据编码是相似的,但是和RFC 3986有一点不同 。在第4.10.22.5节中告诉我们下列字符是不应该百分号编码:ALPHA / DIGIT / “*” / “-” / “.” / “_”α/数字/”-”/”.”/”_”你应该用“+”(0x2B)代替空格(“ ”) 。它和RFC 3986 的不同在 Stack Overflow answer 里有描述 。波浪号(“~”)被百分号编码了,但是星号(“*”)没有 。该建议很好地总结了这种情况:这种编码的表单数据在很多方面是异常的,多年来的实践的问题和折中解决导致了互通性的一系列必要操作 。但是绝不代表好的设计实践 。Swift给String extension添加一个新的方法public func stringByAddingPercentEncodingForFormData(plusForSpace: Bool=false) -> String?let unreserved = "*-._"let allowed = NSMutableCharacterSet.alphanumericCharacterSet()allowed.addCharactersInString(unreserved)if plusForSpaceallowed.addCharactersInString(" ")}var encoded = stringByAddingPercentEncodingWithAllowedCharacters(allowed)if plusForSpaceencoded = encoded?.stringByReplacingOccurrencesOfString(" ",withString: "+")}return encoded}注意,由于很多 web服务好像不关心我用“+”或者百分号编码将空格做了可选的编码 。Object-CObject-C的方法缺少一个可选参数- (nullable NSString *)stringByAddingPercentEncodingForFormData:(BOOL)plusForSpaceNSString *unreserved = @"*-._";NSMutableCharacterSet *allowed = [NSMutableCharacterSetalphanumericCharacterSet];[allowed addCharactersInString:unreserved];if (plusForSpace)[allowed addCharactersInString:@" "];}NSString *encoded = [self stringByAddingPercentEncodingWithAllowedCharacters:allowed];if (plusForSpace)encoded = [encoded stringByReplacingOccurrencesOfString:@" " withString:@"+"];}return encoded;}用例:// Swiftlet query = "one two"let space = query.stringByAddingPercentEncodingForFormData()// "one%20two"let plus = query.stringByAddingPercentEncodingForFormData(true)// "one+two"// Objective-CNSString *query = @"one two";NSString *encodedQuery = [query stringByAddingPercentEncodingForFormData:YES];// "one+two"
3,telecore plus是什么意思免清洗免清洗(telecore plus)类型: 免洗锡线 品牌: 美国爱法 助焊剂含量: 1.2(%) 标准直径: 0.81(mm) 熔点: 183(℃) 重量: 1000(g)不明白啊 = =!【swiftlet plus,plus多少钱】
4,readyriver plus 什么意思plus英 [pl?s]美 [pl?s] prep.(表示运算)加;(表示包容)外加;[口语]和;(表示数目)在零(度)以上n.加号;[数学]正量;好处;附加物adj.加的;正的;附加的;比所示数量多的双语例句 1Send a cheque for £ 18.99 plus £ 2 for postage and packing.请寄上18.99英镑的支票 , 外加2英镑的邮资和包装费 。2The aircraft was subjected to temperatures of minus 65 degrees and plus 120 degrees. 这架飞机曾经在零下65度和零上120度的温度下飞行 。5,audirvana plus怎么用我是audirvana plus 2.0.2接一般的DAC再接扩大器,以我的木耳实在听不出来差异,但是比较只有透过itune输出,感觉audirvana plus输出的声音清澈透明多了,amarra试用过,觉得档案大又复杂,一般使用,plus也够了audirvana plus支持usb dac/interface的首先在audirvana plus菜单下选择itunes integrated mode2 m. a$ b4 ~& u; v9 j$ f# ^0 e 在preference -> audio system 里面选择你的dac4 e2 |6 w4 |& q. m& h最好把itunes和audirvana plus都关闭,然后打开audirvana plus,这时候itunes会自动运行 最后在itunes里面播放就ok了! h( y4 q+ y. o" a& a) qb! ?注意看audirvana plus播放器界面输出的dac的采样频率 , audirvana plus有升频的功能的,别输出了一个你dac没法解码的频率就行 。

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