size

iOS - How to find the right font size (in points) with the same height as a given CGRect?

由 為{幸葍}努か 提交于 2020-01-13 00:30:09
问题 Heading pretty much explains it. I have an image that I'm drawing text on. I want the text to be sized according to the size of the image and want to find a way to get a height for the font that is just a little shorter than the image itself. 回答1: OK, so for everyone who thinks an iteration is not avoidable: NSString *string = @"The string to render"; CGRect rect = imageView.frame; UIFont *font = [UIFont fontWithSize:12.0]; // find the height of a 12.0pt font CGSize size = [string

vue+element-ui实现分页

由 荒凉一梦 提交于 2020-01-12 17:00:16
我使用得是el-table+el-pagination来实现的， 话不多说，直接上代码 html代码部分 <!-- table --> <el-table :data="showData" stripe style="width:100%" v-loading="listLoading"> <el-table-column type="selection" width="55"></el-table-column> <!-- <el-table-column type="index" prop="id" label="编号" width="100" sortable></el-table-column> --> <el-table-column prop="id" label="编号" width="100" sortable></el-table-column> <el-table-column prop="name" label="姓名" width="100" sortable></el-table-column> <el-table-column prop="sex" label="性别" width="100" sortable></el-table-column> <el-table-column prop="age" label="年龄" width="100"

How big is too big for a MySQL table?

由 筅森魡賤 提交于 2020-01-12 04:11:08
问题 I was finally convinced to put my smaller tables into one large one, but exactly how big is too big for a MySQL table? I have a table with 18 fields. Some are TEXT , some are short VARCHAR(16) , others longer VARCHAR(100) . Right now we get about 200,000 rows a day, which would be 6 million+ a month. How big is too big? Does it matter how many fields you have, or just rows? 回答1: There's not a great general solution to the question "How big is too big" - such concerns are frequently dependent

组合总数二

由 做~自己de王妃 提交于 2020-01-11 20:12:04
给定一个数组 candidates 和一个目标数 target ，找出 candidates 中所有可以使数字和为 target 的组合。 candidates 中的每个数字在每个组合中只能使用一次。 说明： 所有数字（包括目标数）都是正整数。 解集不能包含重复的组合。 示例 1: 输入: candidates = [10,1,2,7,6,1,5], target = 8, 所求解集为: [ [1, 7], [1, 2, 5], [2, 6], [1, 1, 6] ] 示例 2: 输入: candidates = [2,5,2,1,2], target = 5, 所求解集为: [ [1,2,2], [5] ] 来源：力扣（LeetCode） 链接：https://leetcode-cn.com/problems/combination-sum-ii 著作权归领扣网络所有。商业转载请联系官方授权，非商业转载请注明出处。 class Solution: def combinationSum2(self, candidates: List[int], target: int) -> List[List[int]]: size=len(candidates) if(size==0): return [] candidates.sort() result=[] self.To_flash

size of executable files?

由 余生长醉 提交于 2020-01-11 10:04:38
问题 I created a very small code to add two integers and save the result in another variables, both in assembly language and c language. code in assembly cost me 617 bytes but code in C took 25k bytes!! why there is a huge difference? Also how can I view the assembly symbolic instructions for C code I wrote? 回答1: High level languages have a certain amount of overhead. While in assembly all you have is exactly what you say. The overhead you are seeing in this case is likely the static binding of

size of executable files?

由 我们两清 提交于 2020-01-11 10:02:34
问题 I created a very small code to add two integers and save the result in another variables, both in assembly language and c language. code in assembly cost me 617 bytes but code in C took 25k bytes!! why there is a huge difference? Also how can I view the assembly symbolic instructions for C code I wrote? 回答1: High level languages have a certain amount of overhead. While in assembly all you have is exactly what you say. The overhead you are seeing in this case is likely the static binding of

iOS 修改label中文字的行间距

由 谁说我不能喝 提交于 2020-01-11 03:57:08
UILabel *label = [[UILabel alloc] init]; label.font = [UIFont systemFontOfSize:17]; label.textColor = [UIColor clackColor]; label.numberOfLines = 2; label.text = @"333333333333333333333333333333"; [view addSubview:label]; NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:label.text]; NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; [paragraphStyle setLineSpacing:7.0f];//设置行间距 [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, label.text.length)]; label

Windows batch file to get C:\ drive total space and free space available

由 杀马特。学长 韩版系。学妹 提交于 2020-01-11 03:25:07
问题 I need a bat file to get C:\ drive total space and free space available in GB (giga bytes) in a Windows system and create a text file with the details. Note: i dont want to use any external utilities. 回答1: cut 9 digits of the size by bytes to get the size in GB: @echo off & setlocal ENABLEDELAYEDEXPANSION SET "volume=C:" FOR /f "tokens=1*delims=:" %%i IN ('fsutil volume diskfree %volume%') DO ( SET "diskfree=!disktotal!" SET "disktotal=!diskavail!" SET "diskavail=%%j" ) FOR /f "tokens=1,2" %

MakeCert - is it possible to change the key size?

由 眉间皱痕 提交于 2020-01-10 18:45:25
问题 When I generate a certificate using MakeCert.exe, I want to change the key size from 1024 to 2048. Is this possible? Or do I need to setup a certificate authority (CA)? 回答1: Here the following syntax is used: makecert -pe -ss MY -$ individual -n "CN=your name here" -len 2048 -r Sorry I cannot test it, since I don't have Makecert. 回答2: A description of Makecert options can be found at MSDN, but I didn't see an explicit one for setting the key length. 来源： https://stackoverflow.com/questions

mysql创建数据表的三种方式

由 最后都变了- 提交于 2020-01-10 15:21:24
目录 1. 常规 create table 方式 2. create table2 like table1 方式 3. 根据查询 table1 的结果集来创建表 table2 方式 1. 常规 create table 方式 CREATE TABLE [ if not exists ] table_name ( column_name1 data_type ( size ) , column_name2 data_type ( size ) , column_name3 data_type ( size ) , . . . . ) ; 数据类型（data_type）规定了列可容纳何种数据类型。下面的表格包含了SQL中最常用的数据类型： 数据类型 描述 integer(size)、int(size)、smallint(size) tinyint(size) 仅容纳整数。在括号内规定数字的最大位数。 decimal(size,d)、numeric(size,d) 容纳带有小数的数字。 “size” 规定数字的最大位数。“d” 规定小数点右侧的最大位数。 char(size) 容纳固定长度的字符串（可容纳字母、数字以及特殊字符）。 在括号中规定字符串的长度。 varchar(size) 容纳可变长度的字符串（可容纳字母、数字以及特殊的字符）。 在括号中规定字符串的最大长度。 date
订阅 size