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perl运算符使用介绍与简单应用_应用技巧_脚本之家
== $x==$y 如果$x等于$y返回1否则返回0 != $x!=$y 如果$x不等于$y返回1否则返回0 <=> $x<=>$y 如果$x大于$y返回1;如果$x等于$y返回0;如果$x小于$y则返回-1 四、字符串(String Values)运算符 符号 范例 说明 gt $str1 gt $str2 如果$str1大于$str2返回1否则返回0 ge $str1 ge $...
www.jb51.net/article/344...htm 2025-4-15
Python批量实现横屏转竖屏的视频处理工具_python_脚本之家
"-y", # 自动覆盖输出文件 "-i", input_file, "-vf", "scale='if(gt(iw/ih,9/16),1080,-2)':'if(gt(iw/ih,9/16),-2,1920)',pad=1080:1920:(1080-iw)/2:(1920-ih)/2", "-c:v", self.video_codec.get(), "-crf", "18", "-preset", "veryfast", "-c:a", self.audio...
www.jb51.net/python/336533b...htm 2025-4-17
Django ORM查询操作方式_python_脚本之家
y = mgr.filter(~(Q(pk__gt=10005) & Q(pk__lt=10010))) print(y) 4.3.3 集合查询 1 2 3 4 5 6 7 8 9 10 11 12 13 # 聚合 from django.db.models import Max, Min, Count, Sum, Avg x = mgr.filter(pk__gt=10008).count() # 将所有数据看做一行出结构 print(x) # 单值 # ag...
www.jb51.net/python/302089k...htm 2025-4-23
vue自定义开发滑动图片验证组件_vue.js_脚本之家
NrZXQgZW5kPSJyIj8+YiRG4AAAALFJREFUeNpi/P//PwMlgImBQkA9A+bOnfsIiBOxKcInh+yCaCDuByoswaIOpxwjciACFegBqZ1AvBSIS5OTk/8TkmNEjwWgQiUgtQuIjwAxUF3yX3xyGIEIFLwHpKyAWB+I1xGSwxULIGf9A7mQkBwTlhBXAFLHgPgqEAcTkmNCU6AL9d8WII4HOvk3ITkWJAXWUMlOoGQHmsE45ViQ2KuBuASoYC4Wf+OUYxz6mQkgwAAN9mIrUReCXg...
www.jb51.net/article/2429...htm 2025-4-18
MongoDB分组查询和聚合查询实例教程_MongoDB_脚本之家
"violate_y": { "$gt": 0 } } } ]) 查询结果如下: /* 1 */{ "_id" : { "patrol_time" : "2021-09-29", "shop_name" : "VETA个护海外旗舰店" }, "violate_y" : 5.0} /* 2 */{ "_id" : { "patrol_time" : "2021-09-29", "shop_name" : "swisseFuJun海外专卖店" }, ...
www.jb51.net/database/2853593...htm 2025-4-24
vue进入页面加载数据缓慢实现loading提示过程_vue.js_脚本之家
eizWxRx8MCw0zxIBQajoRpyuESW867K4j8Rc7swR28yGtdXG+0sJdlF9hL8Ss/sNsDkHi7QaI2s8RNAqH0EByBZrDQoEe4ptbtNDI4GzBKqOUQIBHRDwNdYYqK0YsAq4LSTZcQ85Rsf/Gk5GyhKPrHgWFHDAgeOgBAEAIfkECQkALQAsAAAAAEAAQAAABv7AlnBILBqPwtEGpUE6n9CoU8KqPgTSrHZbYD2qka14fBRZWSayushBXSolZ7eKdmIaj0lqjURcvCwNTiJfVW...
www.jb51.net/article/2591...htm 2025-4-22
SpringBoot接口加密与解密的实现_java_脚本之家
"Dh84wqHIptwa+moosVvd7aSzktuOB4CQRO10qKkSHVFuI+sl47A4KGzH/nX9ydUm" + "tpsTnQAlXwBczd4=...methodParameter, Type targetType, Class<? extends HttpMessageConverter<?>> converter
www.jb51.net/program/302943f...htm 2025-4-23