if(x <= y)// tests if x is less (smaller) than or equal to ySerial.println("x is less than or equal to y");}voidloop() {} The result on Serial Monitor: COM6 Send x is less than or equal to y AutoscrollShow timestamp ...
; if(i == j) Serial.println(" i is equal to j"); if(i >= j) Serial.println(" i is greater than or equal to j"); if(i > j) Serial.println(" i is greater than j"); Serial.println(); i = i + 1; if(i > j + 1) delay(10000); } 3 程序效果如下：通过串...
== (comparison) > (greater than) >= (greater than or equal to) < (less than) <= (less than or equal to) != (different from) 14、Arrays类型 数组类型和其他的差不多,数组三要素类型、名称、大小,通过下表访问数组元素; 15、void类型 主要用在函数类型和指针 16、sizeof() 类型大小的获取操作...
=(not equal to) <(less than) <=(less than or equal to) ==(equal to) >(greater than) >=(greater than or equal to) Boolean Operators !(logical not) &&(logical and) ||(logical or) Pointer Access Operators &(reference operator) *(dereference operator) Bitwise Operators &(bitwise and)...
x <= y (x is less than or equal to y) x >= y (x is greater than or equal to y) 警告: 小心偶然地使用单个等号(例如if(x = 10))。单个等号是赋值运算符,这里设置x为10(将值10存入变量x)。改用双等号(例如if (x == 10)),这个是比较运算符,用于测试x是否等于10。后者只在x等于10时...
x <= y (x is less than or equal to y) x >= y (x is greater than or equal to y) 谨防意外使用单个等号(例如if (x = 10))。单个等号是赋值运算符,并将x设置为 10(将值 10 放入变量x)。而是使用双等号(例如if (x == 10)),这是比较运算符,并测试whetherx是否等于 10。仅当x等于 10...
x > y (x is greater than y) x <= y (x is less than or equal to y) x >= y (x is greater than or equal to y) 警告: 小心偶然地使用单个等号(例如if(x = 10))。单个等号是赋值运算符,这里设置x为10(将值10存入变量x)。改用双等号(例如if (x == 10)),这个是比较运算符,用于测...
equal to == 检查两个操作数的值是否相等,如果是,则条件变为真。 (A == B)不是真的 not equal to != 检查两个操作数的值是否相等,如果值不相等则条件变为真。 (A!= B)是真的 less than < 检查左操作数的值是否小于右操作数的值,如果是,则条件变为真。 (A < B) 为真 ...
Less-than or equal is not rollover safe. The behavior of interval depends on how “previousMillis” gets reset. In this case, each iteration of loop() updates the value. So the interval will be the time between loops (plus some overhead.) If you want interval between triggers, then ...
==(equal to) !=(not equal to) <(less than) >(greater than) <=(less than or equal to) >=(greater than or equal to) Boolean Operators &&(and) ||(or) !(not) Pointer Access Operators * dereference operator & reference operator ...