public string GetFormatString(string dayUnit, string hourUnit, string minuteUnit,
string secondUnit)
{
using (var scope = new StringBuilderScope())
{
if (this.day != 0)
{
scope.stringBuilder.Append(this.day + dayUnit);
}
if (scope.stringBuilder.Length != 0 || this.hour != 0)
{
scope.stringBuilder.Append(this.hour + hourUnit);
}
if (scope.stringBuilder.Length != 0 || this.minute != 0)
{
scope.stringBuilder.Append(this.minute + minuteUnit);
}
if (scope.stringBuilder.Length != 0 || this.second != 0)
{
scope.stringBuilder.Append(this.second + secondUnit);
}
var result = scope.stringBuilder.ToString();
return(result);
}
}
/// <summary>
/// 将seconds转为hh:mm:ss
/// 倒计时经常使用
/// </summary>
/// <param name="seconds"></param>
/// <param name="hCount">小时那位需要至少保留多少位，即1的时候显不显示为01</param>
/// <param name="isZeroIgnore">是否小时或分钟或秒为0的时候忽视该位，高位有的话还是会保留地位的，即使低位为0</param>
/// <returns></returns>
public static string SecondToStringHHmmss(long seconds, int hCount = 2, bool isZeroIgnore = false)
{
using (var scope = new StringBuilderScope())
{
long HH = seconds / 3600;
isZeroIgnore = isZeroIgnore && HH == 0;
if (!isZeroIgnore)
{
scope.stringBuilder.Append(HH.ToString().FillHead(hCount, CharConst.Char_0) +
StringConst.String_Colon);
}
long mm = (seconds % 3600) / 60;
isZeroIgnore = isZeroIgnore && mm == 0;
if (isZeroIgnore)
{
scope.stringBuilder.Append(mm.ToString().FillHead(2, CharConst.Char_0) + StringConst.String_Colon);
}
long ss = seconds % 60;
isZeroIgnore = isZeroIgnore && ss == 0;
if (isZeroIgnore)
{
scope.stringBuilder.Append(ss.ToString().FillHead(2, CharConst.Char_0));
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// 将s从fromIndex开始,到toIndex（不包括toIndex）结束的元素转为字符串连接起来，元素之间用n连接（最后的元素后面不加n）
/// 例如：object[] s={"aa","bb","cc"} split="DD" return "aaDDbbDDcc"
/// </summary>
public static string Concat <T>(this IList <T> self, int fromIndex, int toIndex, string separator)
{
if (fromIndex < 0 || toIndex > self.Count || toIndex - fromIndex < 0)
{
throw new IndexOutOfRangeException();
}
using (var scope = new StringBuilderScope())
{
if (toIndex - fromIndex <= 0)
{
return(scope.stringBuilder.ToString());
}
for (int i = fromIndex; i < self.Count && i <= toIndex; i++)
{
string value = self[i].ToString();
if (i == fromIndex)
{
scope.stringBuilder.Append(value);
}
else
{
scope.stringBuilder.Append(separator + value);
}
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// 将s重复n次返回
/// </summary>
public static string Join(this string self, int n)
{
using (var scope = new StringBuilderScope())
{
for (var i = 0; i < n; i++)
{
scope.stringBuilder.Append(self);
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// MD5加密
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static string Encrypt(string s)
{
var md5Hash = MD5.Create();
var datas = md5Hash.ComputeHash(s.GetBytes());
using (var scope = new StringBuilderScope())
{
for (var i = 0; i < datas.Length; i++)
{
var data = datas[i];
scope.stringBuilder.Append(data.ToString(StringConst.String_x2));
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// 后补齐字符串.若src长度不足len，则在src后面用c补足len长度，否则直接返回src
/// </summary>
public static string FillEnd(this string self, int len, char c)
{
if (self.Length >= len)
{
return(self);
}
using (var scope = new StringBuilderScope())
{
scope.stringBuilder.Append(self);
for (var i = 0; i < len - self.Length; i++)
{
scope.stringBuilder.Append(c);
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// 从根物体到当前物体的全路径, 以/分隔
/// </summary>
public static string GetFullPath(Transform transform, Transform rootTransform = null,
string separator = StringConst.String_Slash)
{
using (var scope = new StringBuilderScope())
{
scope.stringBuilder.Append(transform.name);
Transform iterator = transform.parent;
while (iterator != rootTransform || iterator != null)
{
scope.stringBuilder.Insert(0, separator);
scope.stringBuilder.Insert(0, iterator.name);
iterator = iterator.parent;
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// 由末尾向前，获取src的第一个数字（可能由多个字符组成）
/// 如：fg125abc456，则得出来是"456";fg125abc456fd，则得出来是""
/// </summary>
public static string GetDigitEnd(this string self)
{
self = self.Trim();
using (var scope = new StringBuilderScope(self.Length))
{
for (var i = self.Length - 1; i >= 0; i--)
{
if (!char.IsDigit(self[i]))
{
break;
}
scope.stringBuilder.Insert(0, self[i]);
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// 获取src的第一个数字（可能由多个字符组成）
/// 如：123df58f，则返回"123";abc123则返回""
/// </summary>
public static string GetDigitStart(this string self)
{
self = self.Trim();
using (var scope = new StringBuilderScope(self.Length))
{
foreach (var t in self)
{
if (!char.IsDigit(t))
{
break;
}
scope.stringBuilder.Append(t);
}
return(scope.stringBuilder.ToString());
}
}
public static string ToString(params object[] objs)
{
using (var scope = new StringBuilderScope())
{
for (int i = 0; i < objs.Length; i++)
{
var obj = objs[i];
if (i == objs.Length - 1)
{
scope.stringBuilder.Append(obj);
}
else
{
scope.stringBuilder.Append(obj + StringConst.String_Space);
}
}
return(scope.stringBuilder.ToString());
}
}
/// <summary>
/// 读取文件file，返回字符串内容
/// </summary>
/// <param name="self"></param>
/// <returns></returns>
public static string ReadTextFile(this FileInfo self)
{
var fr = new StreamReader(self.FullName);
using (var scope = new StringBuilderScope())
{
var chars = new char[1024];
try
{
int n;
while ((n = fr.Read(chars, 0, chars.Length)) != 0)
{
scope.stringBuilder.Append(chars, 0, n);
}
return(scope.stringBuilder.ToString());
}
finally
{
fr.Close();
}
}
}
public static (bool, string) GetRelativePath(Transform transform, Transform parentTransform = null)
{
using (var scope = new StringBuilderScope())
{
scope.stringBuilder.Append(transform.name);
if (transform == parentTransform)
{
return(true, scope.stringBuilder.ToString());
}
Transform parentNode = transform.parent;
while (!(parentNode == null || parentNode == parentTransform))
{
scope.stringBuilder.Insert(0, parentNode.name + StringConst.String_Slash);
parentNode = parentNode.parent;
}
bool isFound = parentTransform == parentNode;
if (isFound && parentNode != null)
{
scope.stringBuilder.Insert(0, parentNode.name + StringConst.String_Slash);
}
return(isFound, scope.stringBuilder.ToString());
}
}
public static string ReplaceAll(this string s, string pattern, Func <string, string> replaceFunc = null)
{
using (var scope = new StringBuilderScope())
{
MatchCollection matchCollection = Regex.Matches(s, pattern);
int lastEndIndex = -1;
for (int i = 0; i < matchCollection.Count; i++)
{
int startIndex = matchCollection[i].Index;
string value = matchCollection[i].Value;
int endIndex = startIndex + value.Length - 1;
value = replaceFunc == null ? value : replaceFunc(value);
scope.stringBuilder.Append(s.Substring(lastEndIndex + 1, startIndex - (lastEndIndex + 1)));
scope.stringBuilder.Append(value);
lastEndIndex = endIndex;
}
if (lastEndIndex != s.Length - 1)
{
scope.stringBuilder.Append(s.Substring(lastEndIndex + 1));
}
return(scope.stringBuilder.ToString());
}
}
public static string ToString2(this ICollection self, bool isFillStringWithDoubleQuote = false)
{
bool isFirst = true;
using (var scope = new StringBuilderScope())
{
switch (self)
{
case Array _:
scope.stringBuilder.Append(StringConst.String_LeftRoundBrackets);
break;
case IList _:
scope.stringBuilder.Append(StringConst.String_LeftSquareBrackets);
break;
case IDictionary _:
scope.stringBuilder.Append(StringConst.String_LeftCurlyBrackets);
break;
}
if (self is IDictionary dictionary)
{
foreach (var key in dictionary.Keys)
{
if (isFirst)
{
isFirst = false;
}
else
{
scope.stringBuilder.Append(StringConst.String_Comma);
}
scope.stringBuilder.Append(key.ToString2(isFillStringWithDoubleQuote));
scope.stringBuilder.Append(StringConst.String_Colon);
object value = dictionary[key];
scope.stringBuilder.Append(value.ToString2(isFillStringWithDoubleQuote));
}
}
else //list
{
foreach (var o in self)
{
if (isFirst)
{
isFirst = false;
}
else
{
scope.stringBuilder.Append(StringConst.String_Comma);
}
scope.stringBuilder.Append(o.ToString2(isFillStringWithDoubleQuote));
}
}
switch (self)
{
case Array _:
scope.stringBuilder.Append(StringConst.String_RightRoundBrackets);
break;
case IList _:
scope.stringBuilder.Append(StringConst.String_RightSquareBrackets);
break;
case IDictionary _:
scope.stringBuilder.Append(StringConst.String_RightCurlyBrackets);
break;
}
return(scope.stringBuilder.ToString());
}
}