Swift string replacement/filtering/cutting/splicing

Original blog, reproduced please indicate the source
Blog.csdn.net/hello_hwc

Previously wrote a swift string foundation, want to understand the classmate can look down.
http://blog.csdn.net/hello_hwc/article/details/39853023

Replace

To replace with A/

var"http://blog.csdn.net/hello_hwc?viewmode=list"var filtered = url.stringByReplacingOccurrencesOfString("?""/"rangenil)

Results

"http://blog.csdn.net/hello_hwc/viewmode=list"

Filter

Filter out individual characters/

var"http://blog.csdn.net/hello_hwc?viewmode=list"var filtered = url.stringByReplacingOccurrencesOfString("/"""rangenil)

Results

"http:blog.csdn.nethello_hwc?viewmode=list"

Filter out the opening and closing blanks

var"   http://blog.csdn.net/hello_hwc?viewmode=list   "var newString = url.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())

Results

"http://blog.csdn.net/hello_hwc?viewmode=list"

Cutting

Use/as delimiter for string to cut, no empty string allowed
Using the Split function

"http://blog.csdn.net/hello_hwc?viewmode=list"let splitedarray = split(url){$0"/"}

The result is an array

"http:""blog.csdn.net""hello_hwc?viewmode=list"

Use/as delimiter for string to cut, allow empty string

var"http://blog.csdn.net/hello_hwc?viewmode=list"let arrayresult = split(url, maxSplit:url.lengthOfBytesUsingEncoding(NSUTF8StringEncoding), allowEmptySlices: true) { (char:Character) ->in    return"/"}

Results

"http:""""blog.csdn.net""hello_hwc?viewmode=list"

Stitching

let splitedarray = ["1","2","3"]letjoin("/", splitedarray)

Results

"1/2/3"

Swift string replacement/filtering/cutting/splicing