从字符串中删除字符 c++/Arduino UNO

Question

我需要从字符串中删除一些字符。当我使用 erase 时它不起作用，编译错误 erase no member named.请帮我。可能是因为我为 Arduino UNO 写作。

Answer 1

Arduino String class is quite different from std::string. For example erase doesn't exists. But there is method remove.

无论如何，你应该从：https://www.arduino.cc/en/Reference/HomePage

开始

Answer 2

Arduino 中的库是定制的，以考虑目标微控制器的内存限制。例如，Uno 在 mega328P Atmel（现为 Microchip）设备上运行，该设备只有 32 KB 闪存。

Answer 3

扩展 KIIV 的建议，您可以这样做：

void setup() {
    // put your setup code here, to run once:
    Serial.begin(9600);
}

void loop() {
    // put your main code here, to run repeatedly:
    String words = "This   is a sentence."; //reassign same string at the start of loop.
    delay(1000);
    Serial.println(words);
    char c;
    char no = ' '; //character I want removed.

    for (int i=0; i<words.length()-1;++i){
        c = words.charAt(i);
        if(c==no){
            words.remove(i, 1);
        }
    }
    Serial.println(words);
    delay(5000);//5 second delay, for demo purposes.
}

从字符串中删除字符 c++/Arduino UNO

Remove character from String c++/Arduino UNO

c++

arduino

arduino-uno

erase