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KeyWongQD
Unity3DTraining
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Unity3DTraining
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lua
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LuaTraining
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Loop.lua
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59 lines (52 loc) · 1.19 KB
master
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Unity3DTraining
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lua
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LuaTraining
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Loop.lua
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-- While
a=10
while( a < 20 )
do
print("a Value:", a)
a = a+1
end
-- 数值for循环,var从exp1变化到exp2
-- 每次变化以exp3为步长递增var,并执行一次"执行体"。exp3是可选的,如果不指定,默认为1
for i=1,f(x) do
print(i)
end
for i=10,1,-1 do
print(i)
end
-- for的三个表达式在循环开始前一次性求值
-- 以后不再进行求值。比如上面的f(x)只会在循环开始前执行一次,其结果用在后面的循环中
function f(x)
print("function")
return x*2
end
for i=1,f(5) do print(i)
end
-- 泛型for循环通过一个迭代器函数来遍历所有值,类似java中的foreach语句
--
--打印数组a的所有值
for i,v in ipairs(a)
do print(v)
end
-- i是数组索引值,v是对应索引的数组元素值。ipairs是Lua提供的一个迭代器函数,用来迭代数组
-- repeat until
--[ 变量定义 --]
a = 10
--[ 执行循环 --]
repeat
print("a Value:", a)
a = a + 1
until( a > 15 )
-- break
--[ 定义变量 --]
a = 10
--[ while 循环 --]
while( a < 20 )
do
print("a 的值为:", a)
a=a+1
if( a > 15)
then
--[ 使用 break 语句终止循环 --]
break
end
end
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