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桩基工程中质量检测各种不同缺陷的波形变换,包括常见的缩颈扩颈断桩等-Foundation Engineering quality inspection of various defects waveform conversion, including common Neck expanding carotid broken pile etc.

微信麻将骰子游戏：附源码和详细教程，可以看作是一个小游戏吧，模拟了玩麻将时候的掷骰子效果，这个小程序是运行于智能手机的微信中，因此可以摇一摇手机就能掷骰子了，然后需要手动触摸“停止”按钮，屏幕上随即显示出掷骰子的结果，游戏界面也挺逼真的，如示例截图所示。

用J2ME编写的手机飞机空战小游戏,比较经典,与大家共享-use J2ME prepared by the Air Combat small cell phone games, more classic and share

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Programas en C funciones, palindrome, etc.

说明：  This a PDF of changing ip

1.本文对一种高效的升压式PWM 变换电路作了分析研究 对开关状态的切换效率高 采用双零软开关工作，大大降低了开关损耗, 提 高了电路的转换效率. 2.该电路在高频的开关电源、逆变器等电力电子电路上有很大的实用价值, 可以提高电路的转换效率. -1. In this paper, an efficient step-up PWM conversion circuit analysis study on the switch to switch the state of high efficiency soft-switching double-zero work, greatly reduces switching losses, improve the conversion efficiency of the circuit .2. The circuit in high-frequency switching power supplies, inverters and other power electronic circuits have great practical value, can improve the circuit

一个纯css实现div容器内图片、文字上下居中的效果，缺点是采用了部分css3样式，兼容性较差(A pure CSS realizes the middle of picture and text in div container, but the disadvantage is that some CSS3 style is adopted and the compatibility is poor.)

阻抗计算工具,很有用。 阻抗计算工具,很有用。-Impedance calculation tool, very useful. Impedance calculation tool, very useful. Impedance calculation tool, very useful.

说明：  一个Excel表的QT实现源码,实现载入和保存文件，以及如何向QTableWidget中添加对电子制表软件公式的支持等功能.(the QT source of a excel sheet )