主机频道
基本运算符示例代码:
var a = 10，b = 20//添加console . log(30 = = = a+b)；//减法console . log(-10 = = A-B)；//乘法运算console . log(200 = = = a * b)；//Division operation console . log(0.5 = = = a/b)；//冗余操作console . log(10 = = = a % b)；加法(+)也可以用作字符串的串联。
var a = & # 039。w & # 039，b = & # 039xs & # 039；//字符串串联console . log(& # 039；。wxs & # 039= = = a+b)；一元运算符示例代码:
var a = 10，b = 20//自增操作console . log(10 = = = a++)；console . log(12 = = = +++a)；//自减量操作console . log(12 = = = a-4 ++ -)；console . log(10 = = = --a)；//正值operation console . log(10 = = =+a a)；//负值operation console . log(0-10 = = = -a = -a)；//无操作console . log(-11 = = ~ a)；//Invert console.log(false ===！a)；//删除operation console . log(true = = = delete a . fake)；//void operation console . log(undefined = = = void a)；//operation console . log(& quot；数字& quot= = =的类型)；位运算符示例代码:
var a = 10，b = 20//将console.log向左移动(80 = = =(a :& gt；2));//签名右移操作console . log(2 = = =(a >:& gt；& gt2));//和operation console . log(2 = = =(a & 3))；//XOR运算console . log(9 = = =(a3))；//或者operation console . log(11 = = =(a | 3))；比较运算符示例代码:
var a = 10，b = 20//小于console . log(true = = =(a ；b))；//小于等于console . log(true = = =(a ；= b))；等效运算符的示例代码:
var a = 10，b = 20//等于console . log(false = = =(a = = b))；//不等于console.log(true === (a！= b))；//完全平等console . log(false = = =(a = = b))；//不相同的console . log(true = = = =(a！= = b))；赋值运算符的示例代码:
var a = 10a = 10a* = 10；console . log(100 = = = a)；a = 10a/= 5；console . log(2 = = = a)；a = 10a % = 7；console . log(3 = = = a)；a = 10a+= 5；console . log(15 = = = a)；a = 10a -= 11；console . log(-1 = = = a)；a = 10a & lt& lt= 10;console . log(10240 = = = a)；a = 10a & gt& gt= 2;console . log(2 = = = a)；a = 10a & gt& gt& gt= 2;console . log(2 = = = a)；a = 10a & amp= 3;console . log(2 = = = a)；a = 10一台^= 3；console . log(9 = = = a)；a = 10a | = 3；console . log(11 = = = a)；二元运算符的示例代码:
var a = 10，b = 20//Logic and console . log(20 = = =(a & amp；b))；//logic or console . log(10 = = =(a | | b))；其他运算符示例代码:
var a = 10，b = 20//条件运算符console.log (20 = = = (a >: = 10？a+10:b+10))；//逗号运算符console.log(20 === (a，b))；运算符优先级运算符说明了关联性20(& # 8230；)括号n/a19 & # 8230；。…会员从左至右参观& # 8230；[ …]会员从左至右参观& # 8230；( …)函数调用从左到右17 & # 8230；+岗位增量不适用。--后减量n/a16！…逻辑不是从右到左~ & # 8230；按位从右向左+& # 8230；一元加法从右到左-& # 8230；从右到左的一元减法++ & # 8230；从右到左递增--& # 8230；从右到左预减类型& # 8230从右到左的类型无效& # 8230；从右向左删除无效& # 8230；从右向左删除14 & # 8230；* …从左到右的乘法& # 8230；/ …从左到右的划分& # 8230；% …从左到右拿起模块13 & # 8230；+ …从左向右添加& # 8230；- …从左到右减12 & # 8230；& lt& lt…按bit left从左向右移动& # 8230；& gt& gt…按bit right从左向右移动& # 8230；& gt& gt& gt…无符号右移从左到右11 & # 8230；& lt…从左到右小于& # 8230；& lt= …从左到右小于或等于& # 8230；& gt…从左到右大于& # 8230；& gt= …从左到右大于或等于10 & # 8230；== …等号从左到右& # 8230；！= …从左到右不等号& # 8230；=== …所有等号从左到右& # 8230；！== …非等号从左到右9 & # 8230；& amp…按bit，从左到右8 & # 8230；^ …从左到右按位异或7 & # 8230；| …按bits或从左到右按6 & # 8230；& amp& amp…逻辑从左到右5 & # 8230；|| …或逻辑从左到右4 & # 8230；？…: …条件运算符从右到左3 & # 8230；= …从右向左赋值& # 8230；+= …从右向左赋值& # 8230；-= …从右向左赋值& # 8230；*= …从右向左赋值& # 8230；/= …从右向左赋值& # 8230；%= …从右向左赋值& # 8230；& lt& lt= …从右向左赋值& # 8230；& gt& gt= …从右向左赋值& # 8230；& gt& gt& gt= …从右向左赋值& # 8230；& amp= …从右向左赋值& # 8230；^= …从右向左赋值& # 8230；|= …从右向左赋值0 & # 8230；, …从左到右的逗号
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