for i in range（a,b,c）a为循环开始的数字(可不填，默认为0)，b为循环结束的后一位（c为正数时）的数字，c为步进的距离和方向，默认为1。for i in range(1, 101，1):print i range(1, 101)表示从1开始，到101为止（不包括101），取其中所有的整数。for i in range(1, 101)就是说...
鉴于for 和 for-in 都不特别适合在 Arrays 上循环,因此在ECMAScript 5中引入了辅助方法:Array.prototype.forEach. constarr = ['a','b','c']; arr.prop='property value'; arr.forEach((elem, index) =>{console.log(elem, index); });// Output:// 'a', 0// 'b', 1// 'c', 2 这个...
letarr=[1,2,3,4,5,6];Array.prototype.a="1"for(letiinarr){// i是下标(索引)if(arr.hasOwnProperty(i)){console.log(i)console.log(arr[i])}} Object 代码语言:javascript 复制 letobj={a:1,b:'2',c:3};Object.prototype.d=4for(letkeyinobj){// key是键console.log(key)console.log(...
百度试题 题目在foriinrange(6)语句中,i的取值是A.[1,2,3,4,5,6]B.[1,2,3,4,5]C.[0,1,2,3,4]D.[0,1,2,3,4,5] 相关知识点: 试题来源: 解析 D 反馈 收藏
const array = ['a', 'b', 'c']; for (const element of array) { console.log(element); } // a // b // c for...of和for...in的区别: for...in语句以任意顺序迭代对象的可枚举属性。 for...of语句遍历可迭代对象定义要迭代的数据。
We would like to have this repository in a polite and friendly atmosphere, so please be kind and respectful to others. For more details, look atCode of Conduct. About Arduino core for the ESP32 Topics arduinoesp32platformioesp-idf Resources ...
Due to my...ahem...unfortunate ignorance way back when I first created this project, the entire codebase (all platforms, cores, and device libraries) are all inside of this one giant repository. That means there's no easy IDE integration the way most libraries work in the Arduino world ...
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以下代码段,不会输出A, B, C,的选项是:Afor i in range(3):print'chr 65+i .end-';1)Bfor i in 01,2]:pri