Sigh with emotion: opportunity
August 23, 2017 at 11:42

Many opportunities are discovered and created by oneself, and the opportunity will benefit for life. Frequently many opportunities are short-lived, and it is difficult to make up for it if you miss it. There is no such store after this village.

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Programming is a high-risk job
August 22, 2017 at 12:34

Programming is a work with high work intensity, high concentration, and high risk. High risk, first, because the task originally planned to be completed within about 3 hours, may actually take 5 to 10 times, or may be completed ahead of time, the time is completely unpredictable; second, development is very uncomfortable, need to grit your teeth and persevere, survive the hardest part, and do complex coordination, mathematical operations, and a lot of debugging every day.

But the benefits of programming are that you always have the functions you need, and when you're done, a machine is born. More than 90% of programming is mathematical, and the finished product can achieve many incredible functions. Most functions can be implemented as long as there are ideas and requirements.

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Glorious music
August 21, 2017 at 13:26

Music is the infinite peak of climbing. Only the sound can record the most glorious and warm part of life and years.

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PHP PK Shell
August 19, 2017 at 12:37

Recently there was an important file management project required Shell + PHP, which were completely different platforms, but could be called from each other to achieve the required functions. The syntax of PHP is succinct and easy to read. When you need to judge whether a process exists in the system, you must use the shell command to program. PHP does not have such this permission.

Both of them have their own advantages and disadvantages. Shell is a built-in command of the Linux operating system. It has higher permissions and can directly implement many system-level functions, but the debugging is cumbersome and the syntax is not easy to read. I preferred to give more functions to PHP to implement.

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Give my kid a sweet smile
August 18, 2017 at 16:58

Every day at noon, my daughter came back home and gave her a sweet smile. She would be happy all day, and parents and kids need this kind of tacit understanding and heart. Because concern is reflected in the smile, concern makes people feel warm, and indifference makes people feel disheartened. It is easy for an only child to get this happiness.

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Design of high power 6V to 4.2V bracket
August 18, 2017 at 07:44

Welding and design took about 5 hours.
Function: 24 X 365 continuous power supply for multiple cellphones (small workstations)
Bracket materials: bamboo sticks for barbecue, fixed with hot melt adhesive
Electronic materials: 6V2A power supply, XL4015 power converter

Picture 3 is a single set of materials, left is 6V2A, right is XL4015 power converter. In order to reduce the fever of a single group, 6V2A uses 4 in parallel and XL4015 uses 2 in parallel. XL4015 has a nominal maximum power of 60W and should be better to use than 2596S.

I used this power converter to power the phone and test the power. When the mobile phone is in standby, it is quite power-saving. The specific value was not recorded, it was less than 0.1W. But when we use the phone and light up the screen, the power is around 3W. Take a 2500mAh battery as an example, the power is about 3.7*2.5=9.25Wh, so theoretically, a new battery will be powered out continuously for up to 3 hours.

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Transplanted the Win7 wallpaper of my favorite
August 16, 2017 at 10:53

The own wallpaper of Win7, the most imaginative one is this one, I transplanted it to the XP system. This picture reminded us of the big sea turtles in Journey to the west, and Castle in the Sky, Hal's mobile Castle.

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A solution of case of mobile data runs slinkingly
August 15, 2017 at 08:43

2 months ago, I bought a CDMA card for my father, and the phone is HUAWEI honor X6. This phone usually used WIFI and closed data, but I found that the data still ran, it consumed 1-2K a day and cost 1-2 cents. After a lot of tests, and finally put the mobile phone 4G closed, now more than a month later, there was no data ran any more.

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