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Is there a “goto” statement in bash?
...
jumpto $start
start:
# your script goes here...
x=100
jumpto foo
mid:
x=101
echo "This is not printed!"
foo:
x=${x:-10}
echo x is $x
results in:
$ ./test.sh
x is 100
$ ./test.sh foo
x is 10
$ ./test.sh mid
This is not printed!
x is 101
...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...该语句返回插入或更新行的唯一行 ID。
SQL REPLACE 语句的意思是“如果不存在则插入，如果存在则更新”。
这些方法执行带有可选绑定参数的 SQL UPDATE 语句，该语句返回更新的行数。
有关更多信息，请参阅下面有关 绑定...
How to pretty print nested dictionaries?
...ake sense, dictionaries need keys per value.
– naught101
Oct 2 '13 at 4:28
2
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Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... print(arr[i])
end
注：上面的程序中：#arr的意思就是arr的长度。
注：前面说过，Lua中的变量，如果没有local关键字，全都是全局变量，Lua也是用Table来管理全局变量的，Lua把这些全局变量放在了一个叫“_G”的Table...
Most underused data visualization [closed]
.... plot ten cycles, then plot their average).
– naught101
Jul 19 '12 at 7:08
1
I also had trouble ...
What does a b prefix before a python string mean?
...
101
The b prefix signifies a bytes string literal.
If you see it used in Python 3 source code, th...
How does functools partial do what it does?
... partial(foo, a=1) # equivalent to: foo(a=1, b)
bar(b=10)
#11 = 1+10
bar(a=101, b=10)
#111=101+10
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namedtuple and default values for optional keyword arguments
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monk-timemonk-time
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iOS difference between isKindOfClass and isMemberOfClass
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Why is using “for…in” for array iteration a bad idea?
..."];
arr[100] = "goodbye";
Then the array have two items, but a length of 101. Using for-in will yield two indexes, while the for-loop will yield 101 indexes, where the 99 has a value of undefined.
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