宋圭武猜想（51）宇宙没有起源也没有结束 若宇宙是上帝创造，问题是上帝谁创造？创造上帝的上帝又是谁创造？这样可以一直问下去。若宇宙是某一种物质生成，问题是该种物质又是谁创造？这样也可以一直追问下去。最大可能是：宇宙没有...
In programming, sometimes there is a need to perform some operation more than once or (say) n number of times. Loops come into use when we need to repeatedly execute a block of statements.在编程中，有时...
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