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JAVA格式化输出浮点数：空格，位数

柳鲲鹏发布时间：2020-11-17 08:53:31 ，浏览量：0

　　格式化输出有什么好处？整齐，漂亮，赏心悦目……从科学角度来说，分析问题更方便。

　　以下用于输出一个视图控件的位置、大小，同时考虑了缩进。

    private static void dumpViewInfo(IView view, int level)
    {
        StringBuffer sb = new StringBuffer();
        int i=0;
        while (i


    
        
            
                
                
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	    基本
        文件
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        错误
        SQL
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	请求信息 : 2025-08-22 02:00:14 HTTP/2.0 GET : /home/article/detail/id/320949.html
运行时间 : 0.0845s ( Load:0.0187s Init:0.0025s Exec:0.0418s Template:0.0216s )
吞吐率 : 11.83req/s
内存开销 : 1,924.59 kb
查询信息 : 18 queries 0 writes 
文件加载 : 36
缓存信息 : 5 gets 0 writes 
配置加载 : 132
会话信息 : SESSION_ID=trkf5rcoobvb2eosj28iokrvdj
    
    
        
    
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Run Behavior\BuildLiteBehavior [ RunTime:0.000009s ]
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Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000856s ]
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[ view_parse ] --START--
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Run Behavior\ContentReplaceBehavior [ RunTime:0.000088s ]
[ template_filter ] --END-- [ RunTime:0.000158s ]
Run Behavior\ParseTemplateBehavior [ RunTime:0.017614s ]
[ view_parse ] --END-- [ RunTime:0.017662s ]
[ view_filter ] --START--
Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000307s ]
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[ app_end ] --START--
    
    
        
    
	[2] session_save_path(): open_basedir restriction in effect. File(/var/lib/php/session) is not within the allowed path(s): (/www/wwwroot/www.chaojiit.com/:/tmp/) /www/wwwroot/www.chaojiit.com/ThinkPHP/Common/functions.php 第 1239 行.
[8192] Array and string offset access syntax with curly braces is deprecated /www/wwwroot/www.chaojiit.com/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 59 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 37 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 97 行.
[8] Trying to access array offset on value of type null /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 97 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 98 行.
[8] Trying to access array offset on value of type null /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 98 行.
[8] Undefined variable: pinglun_list /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 107 行.
    
    
        
    
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SELECT * FROM `menu` WHERE `fid` = 3 AND `status` = 1  [ RunTime:0.0001s ]
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SHOW COLUMNS FROM `bloger` [ RunTime:0.0012s ]
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SHOW COLUMNS FROM `article_content` [ RunTime:0.0025s ]
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SHOW COLUMNS FROM `article_cate` [ RunTime:0.0012s ]
SELECT `name` FROM `article_cate` WHERE `id` = 5 LIMIT 1   [ RunTime:0.0011s ]
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0.0845s