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JavaScript之数据类型
原文:JavaScript之数据类型数据类型 JavaScript中有5种简单数据类型(也称为基本数据类型):Undefined、Null、Boolean、Number和String。还有1种复杂数据类型——Object,Object本质上是由一组无序的名值对组成的。 typeof操作符 介于Jav...
分类:编程语言   时间:2015-08-06 13:03:21    阅读次数:201
expected number,sequence,or string.map evaluated instead of freemarker.template.smplehash
expected number,sequence,or string.map evaluated instead of freemarker.template.smplehash使用freemark标签遍历map当报纸的异常集合.终于找到了,它是由于freemark的标签只能遍历key至string...
分类:其他好文   时间:2015-08-06 12:57:35    阅读次数:162
JavaScript之数据类型
数据类型 JavaScript中有5种简单数据类型(也称为基本数据类型):Undefined、Null、Boolean、Number和String。还有1种复杂数据类型——Object,Object本质上是由一组无序的名值对组成的。 typeof操作符 介于JavaScript是松散类型的,因此.....
分类:编程语言   时间:2015-08-06 12:45:31    阅读次数:194
Happy Number
Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any positive integer...
分类:移动开发   时间:2015-08-06 11:01:58    阅读次数:104
2015 HUAS Summer Trainning #4~C
My birthday is coming up and traditionally I’m serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. ....
分类:其他好文   时间:2015-08-06 11:00:01    阅读次数:104
Number of 1 Bits
Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as theHamming weight).For example, the 32-bit in...
分类:其他好文   时间:2015-08-06 10:59:46    阅读次数:118
JS中判断undefined和null类型
JavaScript中有两种特殊数据类型:undefined和null,JS判断undefined以下是不正确的写法:if(exp == undefined){ alert("undefined"); }正确方法:if(typeof(exp) == 'undefined'){ alert("undefined"); }typeof 返回的是字符串,有六种类型: “number”...
分类:Web程序   时间:2015-08-06 00:36:50    阅读次数:120
SPOJ--K-query (线段树离线) 离线操作解决一下问题
K-queryGiven a sequence of n numbers a1, a2, ..., anand a number of k- queries. A k-query is a triple (i, j, k) (1 ≤ i ≤...
分类:其他好文   时间:2015-08-06 00:00:54    阅读次数:327
hdoj-1395-2^x mod n = 1【欧拉定理】
2^x mod n = 1 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 14349 Accepted Submission(s): 4438 Problem Description Give a number n, find...
分类:其他好文   时间:2015-08-05 20:30:51    阅读次数:123
2136 Largest prime factor(打表)
Problem DescriptionEverybody knows any number can be combined by the prime number.Now, your task is telling me what position of the largest prime fact...
分类:其他好文   时间:2015-08-05 20:03:57    阅读次数:128
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