无法在Swift中替换字符串 [英] Unable to replace string in Swift

问题描述

尝试转义一些特殊的字符串以通过xml API发送字符串.

Trying to escape few special characters of string for sending it via xml api.

尝试以下代码，但不适用于所有出现的单引号(')和双引号()

Tried below code but not working for all the occurrences of Single Quote (') and Double Quote (")

var strToReturn = ""Hello" ‘world’"
strToReturn = strToReturn.replacingOccurrences(of: "&", with: "&")
strToReturn = strToReturn.replacingOccurrences(of: "<", with: "&lt;")
strToReturn = strToReturn.replacingOccurrences(of: ">", with: "&gt;")
strToReturn = strToReturn.replacingOccurrences(of: "‘", with: "&apos;")
strToReturn = strToReturn.replacingOccurrences(of: """, with: "&quot;") 

print("Replaced string : \(strToReturn)") 

结果为&"Hello"& quotaworld

如果有人可以帮助，谢谢！

If anyone can help, thanks!

推荐答案

您需要为'和" 指定替换字符串，因为'！='和"！="

You need to specify replacement strings for ’ and " because ’ != ‘ and " != "

var strToReturn = ""Hello" ‘world’"
strToReturn = strToReturn.replacingOccurrences(of: "&", with: "&")
strToReturn = strToReturn.replacingOccurrences(of: "<", with: "&lt;")
strToReturn = strToReturn.replacingOccurrences(of: ">", with: "&gt;")
strToReturn = strToReturn.replacingOccurrences(of: "‘", with: "&apos;")
strToReturn = strToReturn.replacingOccurrences(of: """, with: "&quot;")
strToReturn = strToReturn.replacingOccurrences(of: "’", with: "&apos;")
strToReturn = strToReturn.replacingOccurrences(of: """, with: "&quot;") 

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