Layout Support This protocol . You can use layout guides as layout items in the NSLayoutConstraint factory methods. Layout Support length Provides the length, in points, of the portion of a view controller’s view that is overlaid by translucent or tr…
获取json对象的长度跟获取一个普通对象或数组的方法不一样,json对象没有length属性,不能直接用.length直接获得. function getJsonLength(json){ var jsonLength = 0; for(var i in json){ jsonLength++; } return jsonLength; }…
在开发一个web项目时,需要获取MP3的播放长度.上网找了一些方法,最后找到了一个可以用的java包jaudiotagger-2.2.3.jar,java包网址http://www.jthink.net/jaudiotagger/ 然后附上网上cope的一段代码 public static int getMp3TrackLength(File mp3File) { try { MP3File f = (MP3File)AudioFileIO.read(mp3File); MP3AudioHe…
/* getStrLen(str):获取一个字符串的长度(包含中文) */ function getStrLen(str){ let len = 0, i, c; for (i = 0; i < str.length; i++){ c = str.charCodeAt(i); if((c >= 0x0001 && c <= 0x007e) || (0xff60 <= c && c <= 0xff9f)){len++;}else{len+=2;}…
public List<string> GetPDFValues() { List<string> strs = new List<string>(); unsafe { ; //调用c++ 返回char** var a = GaussianDistributionServiceProxy.GetPDFValues(); ; //获取char**指针长度 start while (true) { var result = Marshal.PtrToStringAnsi(…
def long_words(n, str): word_len = [] txt = str.split(" ") for x in txt: if len(x) > n: word_len.append(x) return word_len print(long_words(, "The quick brown fox jumps over the lazy dog"))…
/** * 获取字符串的长度,如果有中文,则每个中文字符计为2位 * * @param value * 指定的字符串 * * @return 字符串的长度 */ public static int length(String value) { int valueLength = 0; String chinese = "[\u0391-\uFFE5]"; /* 获取字段值的长度,如果含中文字符,则每个中文字符长度为2,否则为1 */ for (int i = 0; i < val…