stringstr = “Hello World”; StringBuilder sb =newStringBuilder("Hello World"); (2)显示整个字符串的时候显示方式不同。 Console.WriteLine("{0}",str); Console.WriteLine("{0}",sb.Tostring()); (3)功能不同 用string可显示字符串的第n个元素,字符串长度、删除字符串首尾空格、复制、大小写、截取字...
String vs. StringBuilder in C# A string (from the System.String namespace) represents a sequence of Unicode characters used to store text. It's important to note that a String object is immutable, meaning once created, its value cannot be changed. It consists of a sequential collection of ...
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Replace String in StringBuilder Use the Replace() method to replace all the specified string occurrences with the specified replacement string. Example: Replace() Copy StringBuilder sb = new StringBuilder("Hello World!"); sb.Replace("World", "C#"); Console.WriteLine(sb);//output: Hello C#!
//遍历Valuesforeach(stringitemindictionary.Values) {//输出遍历到的Values(值)Console.WriteLine("value:{0}", item); } (5)判断键值对集合是否包含某个Keys(键) //判断是否包含 2 这个键,返回bool类型,true则包含if(dictionary.ContainsKey(2)) ...
一个StringBuilder 表示一系列字符,它不像普通的字符串,是可变的。通常需要修改我们已经创建的字符串,但标准字符串对象不可变。这意味着每次修改字符串时,都需要创建,复制并重新分配新的字符串对象。 string myString = "Apples"; mystring += " are my favorite fruit"; 在上面的例子中,myString 最...
TheStringBuilderclass is present in theSystem.Textnamespace, so if we require it in our programs, we must import theSystem.Textnamespace. The way we declare and initialize aStringBuilderis similar to that of any class in C#; developers can initialize aStringBuilderclass in C# as follows: ...
EquivalentTo(DbConnectionStringBuilder connectionStringBuilder) connectionStringBuilder:连接串构造类对象 相等:true 不相等:false 判断是否与指定的连接串构造类对象完全相等 Remove(string keyword) keyword:键值 True 从键值信息链里寻找并移除指定键值对信息 ShouldSerialize(string keyword) keyword:键值 包含:true 不包含...
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CSharp.RuntimeBinder Namespace Microsoft.Internal Namespace Microsoft.Internal.Pivot.Controls Namespace Microsoft.Internal.Pivot.Interactivity Namespace Microsoft.Internal.Pivot.Utilities Namespace Microsoft.Internal.Pivot.Views Namespace Microsoft.Phone.Data.Linq Namespace Microsoft.Phone.Data.Linq.Mapping ...