Is the Wright coin of any practical use
bitcoin, lightcoin and other virtual cryptocurrencies are defined by the central bank as a kind of special Internet goods in China. Citizens can buy and sell freely at their own risk, which denies their monetary attribute. Central bank governor Zhou Xiaochuan once said that bitcoin is more like a tradable asset, similar to stamps. Since it's a commodity or asset, it's legal. Citizens' property is sacred and inviolable. Bitcoin house also published the full text of the joint notice on bitcoin risk issued by the central bank and other five ministries and commissions in 2013. You can see it from the emotional point of view
most of the major countries in the world also adopt a cold attitude towards bitcoin, because bitcoin may be used for money laundering, drug trading and other illegal activities.
digital currencies are traded on exchanges, such as coin an, fire coin and bitbuffer.
linux is an operating system developed with standard C language
Android bottom driver and operating system kernel are developed by C language and assembly
Android operating system itself is developed with Java, and uses JNI to call the local C language library to realize the underlying scheling of the operating system
Android applications are developed with Java; At the same time, you can also use C / C + + native development, but most of the time do not use C. So basically Java is the standard development language
Android uses a modified JVM (Java virtual machine), which is called Dalvik virtual machine, and its essence is java virtual machine
therefore, a Dalvik virtual machine, that is, a Linux process, will be created for each app
to say it's complicated, it's actually running Java programs based on the modified version of Java virtual machine under Linux
hope to help you!
This kind of coupling effect is everywhere. For example, ring the Warring States period, King Zhuang of Chu once won a battle and held a banquet in the palace to celebrate his victory. When it was dark, suddenly a strong wind blew in and blew out the candle. The palace was dark. In the panic, Zhuang Wang's favorite concubine felt that someone had pulled her sleeve. After some struggle, she pulled off the hat tassel on the head and ran to the king of Zhuang in a rage to cry. After hearing this, the king of Zhuang didn't track down the impolites. Instead, he asked everyone to pull off their hats, and then ordered them to light candles and leave happily. Three years later, the state of Jin invaded Chu. King Zhuang led the army to meet the enemy and found that an officer was always desperate and charged ahead. Under his leadership, the soldiers fought bravely and defeated the Jin army. King Zhuang was surprised and asked again and again. The general just said: "three years ago, when my subordinates were drunk and impolite, the king was tolerant but not guilty. I always wanted to repay the king's kindness with my own life. I'm not willing to give up, even though I've lost my mind. " King Zhuang's tolerance triggered the general's action of repaying his death. It is said in the book of songs that "throw me a melon, and give me a reward for Qiongyao". The ancients said that "come but not go" and so on, which are all the effects of interpersonal coupling
in learning, the coupling effect is more obvious. A well coupled class is likely to interact with all students to proce the quality of unity, upward, good at learning and positive progress; If the coupling is not good, they will quarrel with each other, tear down the platform, and drag down a class of students. Usually, we all have this experience. If a family's parents are willing to learn, then the child can't be unwilling to learn. In the library, in the classroom, we are all studying hard, and the people who come back will not make a lot of noise, but study hard
