微信小程序内常用的运算符有哪些

基本运算符示例代码：var a = 10, b = 20;// 加法运算console.log(30 === a + b);// 减法运算console.log(-10 === a - b);// 乘法运算console.log(200 === a * b);// 除法运算console.log(0.5 === a / b);// 取余运算console.log(10 === a % b);加法运算（+）也可以用作字符串的拼接。var a = '.w' , b = 'xs';// 字符串拼接console.log('.wxs' === a + b);一元运算符示例代码：var a = 10, b = 20;// 自增运算console.log(10 === a++);console.log(12 === ++a);// 自减运算console.log(12 === a--);console.log(10 === --a);// 正值运算console.log(10 === +a);// 负值运算console.log(0-10 === -a);// 否运算console.log(-11 === ~a);// 取反运算console.log(false === !a);// delete 运算console.log(true === delete a.fake);// void 运算console.log(undefined === void a);// typeof 运算console.log("number" === typeof a);位运算符示例代码：var a = 10, b = 20;// 左移运算console.log(80 === (a << 3));// 无符号右移运算console.log(2 === (a >> 2));// 带符号右移运算console.log(2 === (a >>> 2));// 与运算console.log(2 === (a & 3));// 异或运算console.log(9 === (a ^ 3));// 或运算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));// 大于console.log(false === (a > b));// 小于等于console.log(true === (a <= b));// 大于等于console.log(false === (a >= b));等值运算符示例代码：var a = 10, b = 20;// 等号console.log(false === (a == b));// 非等号console.log(true === (a != b));// 全等号console.log(false === (a === b));// 非全等号console.log(true === (a !== b));赋值运算符示例代码：var a = 10;a = 10; a *= 10;console.log(100 === a);a = 10; a /= 5;console.log(2 === a);a = 10; a %= 7;console.log(3 === a);a = 10; a += 5;console.log(15 === a);a = 10; a -= 11;console.log(-1 === a);a = 10; a <<= 10;console.log(10240 === a);a = 10; a >>= 2;console.log(2 === a);a = 10; a >>>= 2;console.log(2 === a);a = 10; a &= 3;console.log(2 === a);a = 10; a ^= 3;console.log(9 === a);a = 10; a |= 3;console.log(11 === a);二元逻辑运算符示例代码：var a = 10, b = 20;// 逻辑与console.log(20 === (a && b));// 逻辑或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));运算符优先级优先级运算符说明结合性20( ... )括号n/a19... . ...成员访问从左到右 ... [ ... ]成员访问从左到右 ... ( ... )函数调用从左到右17... ++后置递增n/a ... --后置递减n/a16! ...逻辑非从右到左 ~ ...按位非从右到左 + ...一元加法从右到左 - ...一元减法从右到左 ++ ...前置递增从右到左 -- ...前置递减从右到左 typeof ...typeof从右到左 void ...void从右到左 delete ...delete从右到左14... * ...乘法从左到右 ... / ...除法从左到右 ... % ...取模从左到右13... + ...加法从左到右 ... - ...减法从左到右12... << ...按位左移从左到右 ... >> ...按位右移从左到右 ... >>> ...无符号右移从左到右11... < ...小于从左到右 ... <= ...小于等于从左到右 ... > ...大于从左到右 ... >= ...大于等于从左到右10... == ...等号从左到右 ... != ...非等号从左到右 ... === ...全等号从左到右 ... !== ...非全等号从左到右9... & ...按位与从左到右8... ^ ...按位异或从左到右7... ｜ ...按位或从左到右6... && ...逻辑与从左到右5... ｜｜ ...逻辑或从左到右4... ? ... : ...条件运算符从右到左3... = ...赋值从右到左 ... += ...赋值从右到左 ... -= ...赋值从右到左 ... *= ...赋值从右到左 ... /= ...赋值从右到左 ... %= ...赋值从右到左 ... <<= ...赋值从右到左 ... >>= ...赋值从右到左 ... >>>= ...赋值从右到左 ... &= ...赋值从右到左 ... ^= ...赋值从右到左 ... ｜= ...赋值从右到左0... , ...逗号从左到右相信看了本文案例你已经掌握了方法，更多精彩请关注小潘博客其它相关文章！

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