在C语言中,String.indexOf函数并不存在。String类型和indexOf函数是Java中的概念。在C语言中,字符串通常是以字符数组或字符指针表示的。要在C语言中查找一个字符串中的子字符串,可以使用strstr函数。 strstr函数是C语言标准库string.h中的一个函数,它的原型如下: ...
IndexOf(String, Int32, Int32, StringComparison) Reports the zero-based index of the first occurrence of the specified string in the current String object. Parameters specify the starting search position in the current string, the number of characters in the current string to search, and the ...
IndexOf(String, Int32, Int32, StringComparison) Gibt den NULL-basierten Index des ersten Vorkommens der angegebenen Zeichenfolge im aktuellen String-Objekt an. Parameter geben die Anfangssuchposition in der aktuellen Zeichenfolge, die Anzahl der Zeichen in der aktuellen Zeichenfolge und den ...
A result value of -1 indicates // the string was not found. // Search using different values of StringComparison. Specify the start // index and count. Console.WriteLine("Part 1: Start index and count are specified."); foreach (StringComparison sc in scValues) { loc = cat.IndexOf(...
http://www.arduino.cc/en/Tutorial/StringIndexOf This example code is in the public domain. */ void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for native USB port only ...
static String valueOf(char[] chs):将字符数组转换成字符串static String valueOf(int i):将整数转换成字符串String toLowerCase():将字符串所有字符小写String toUpperCase():将字符串所有字符大写String concat(String str):字符串拼接1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ...
String 类 C#中的IndexOf方法区分大小写。但是,您可以使用CompareInto类使其对大小写不敏感。 代码如下: stringfirstString ="What a day this has been!";stringsecondString ="Day"; CompareInfo sampleCInfo=CultureInfo.InvariantCulture.CompareInfo;intindex = sampleCInfo.IndexOf(firstString, secondString, ...
Use the IndexOf() and Substring() helper methods to locate the position of one or more characters inside a larger string, and return the part of the larger string that follows the character positions you specify.
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This JavaScript tutorial explains how to use the string method called indexOf() with syntax and examples. In JavaScript, indexOf() is a string method that is used to find the location of a substring in a string.