Arduino的 String 类提供了 toInt() 方法,可以将字符串转换为整数。 cpp int number = inputString.toInt(); 验证转换结果是否正确: 在转换后,你可以通过比较转换前后的值来验证转换是否成功。例如,如果转换后的整数再转换回字符串与原始字符串相同,则可以认为转换是成功的。 cpp String convertedBackToString =...
StringIndexOf - 寻找在字符串里字符的第一个或最后一个的状态 StringLength - 获得和修剪字符串的长度 StringLengthTrim - 获得和修剪字符串的长度 StringReplace - 替换字符串里的个别字符 StringStartsWithEndsWith - 检查一个给定的字符或子串(substrings)的开始或结尾 StringSubstring - 在给定的字符串里寻找"p...
The given code can be summarized as follows: A string variable "a" is assigned the value "1200" and an integer variable "num" is declared. The setup function initializes the serial communication and converts the string "a" to an integer using the toInt function. The converted integer is ...
问在Arduino IDE中将255以上的"String“转换为确切的"Integer”或"Long“类型ENstr := “123” // ...
int iRCspeed = atoi(RCspeed); // convert string into integer //rest of program } Android 应用程序发送的字符串被读入一个特殊的字符串结构:一个带有 null-termination 的 C 字符串。(0 字符告诉程序它已经到了字符串的末尾)。这是通过使用函数 Serial.readBytesUntil(‘\n’, input, 。..)来完成的...
String Replace: Replace individual characters in a string. String Start With Ends With: Check which characters/substrings a given string starts or ends with. String Substring: Look for "phrases" within a given string. String To Int: Allows you to convert a String to an integer number.纠错...
servo1Pos = dataInS.toInt(); // Convert the string into integer 在这里我们可以简单地调用write()函数并且伺服将转到该位置,但是以这种方式伺服将以其最大速度运行,这对于机械臂来说太快了。相反,我们需要控制伺服的速度,因此我使用了一些FOR循环,以便通过在每次迭代之间实现延迟时间来逐渐将伺服从前一个位置...
String Replace: Replace individual characters in a string. String Start With Ends With: Check which characters/substrings a given string starts or ends with. String Substring: Look for "phrases" within a given string. String To Int: Allows you to convert a String to an integer number....
comStr = Serial.readString(); // read out the string comInt = comStr.toInt(); // convert the string to integer comInt = constrain(comInt, 1000, 2000); // limit the integer between to 1000 and 2000 Serial.println(comInt); // show the integer number on Serial Monitor ...
uint8_t font)//draw string right justified to dXdrawRightString(const String& string, int32_t dX, int32_t poY, uint8_t font)drawRightString(const char *string, int32_t dX, int32_t poY, uint8_t font)drawNumber(long long_num, int32_t poX, int32_t poY) //draw a long integer...