UIAlertViewDelegate定义的常用方法 1 // Called when a button is clicked. The view will be automatically dismissed after this call returns 2 //当用户单击警告框中得某个按钮时激...
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其他好文 时间:
2015-08-09 20:22:32
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165
一,两个函数的文档:1,xrange():xrange(stop)xrange(start, stop[, step])This function is very similar to range(), but returns an xrange object instead of a list. ...
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其他好文 时间:
2015-08-08 22:46:41
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116
根据官方文档,rand()的取值范围为[0,1)在Mysql中可以执行如下命令查看:mysql> ? randName: 'RAND'Description:Syntax:RAND(), RAND(N)Returns a random floating-point value v in the ra...
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数据库 时间:
2015-08-07 13:03:10
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167
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...
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其他好文 时间:
2015-08-06 10:59:46
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118
1.Array.isArray() The Array.isArray() method returns true if an object is an array,false if it is not. 如果判断的对象是一个数组则返回true,否则返回false; 实现: if (!Array.isArray) {
Array.isArr...
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编程语言 时间:
2015-08-04 17:28:55
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124
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...
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其他好文 时间:
2015-08-04 00:16:38
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102
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...
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其他好文 时间:
2015-08-03 22:16:35
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144
原题如下:
Implement strStr().
Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
我的代码:
public class Solution {
public int strStr(String...
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其他好文 时间:
2015-07-31 18:41:56
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121
compare从这里可以看出,compare是Comparator接口中的一个类,再看一下源代码中的解释 Compares its two arguments for order. Returns a negative integer,zero, or a positive integer as t...
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编程语言 时间:
2015-07-31 14:35:53
阅读次数:
168
iOS中,根据给定的内容、字体,宽度,计算文本高度的函数,iOS7之前使用sizeWithFont,iOS7之后使用boundingRectWithSize。- boundingRectWithSize:options:attributes:context:
Calculates and returns the bounding rect for the receiver drawn using...
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其他好文 时间:
2015-07-31 13:12:37
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113