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KIPKIPS
LuaIntroductoryNotes
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File_IO.lua
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45 lines (40 loc) · 1.96 KB
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LuaIntroductoryNotes
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File_IO.lua
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---
--- Generated by EmmyLua(https://github.com/EmmyLua)
--- Created by KipKips.
--- DateTime: 2020.3.18 19:27
---
---r 以只读形式打开文件 文件必须存在
--[[file=io.open("File_IO_DataTest.txt","r") --打开文件,以只读形式
io.input(file) --向Lua程序设置输入文件
line1=io.read() --第一行
print(line1)
print(io.read())
print(io.read())
print(io.read())--该行没有数据,输出nil
io.close()]]
---w 以只写模式打开文件 若文件存在,则清空文件,若不存在则新建文件
--[[file=io.open("File_IO_DataTest_Mode_W.txt","w") --打开文件
io.output(file) --从程序向文件输出数据
io.write("你看****我像不****像在****骂人****\n")
io.write("你————————说————————什——————么——————啊?————我—————————听—————————不————————清\n")]]
---a 以附加方式打开文件 若文件存在,则在文件末尾附加,若不存在则新建文件
file=io.open("File_IO_DataTest_Mode_W.txt","a") --打开文件
io.write("对不起我太可爱了\n")
io.write("谁是电音之王?\n")
io.close()
---w+ 代表可读写模式,若文件存在,则清空文件,若文件不存在,则创建文件
---r+ 代表可读写模式,文件必须存在
---a+ 代表以可读写模式打开文件,文件存在,则在文件尾部附加,若文件不存在,则创建文件
---b 二进制模式,若文件为二进制,可以加上b
---+ 代表文件既可读又可写
--output对应写入操作
--[[file=io.open("File_IO_DataTest_Mode_W.txt","a+") --打开文件
io.input(file)
print(io.read("*l"))--读取下一行 在文件尾(EOF)处返回 nil
print(io.read("*n"))--读取该行的数字,数字必须在第一位
print(io.read("*a"))--当前位置到结尾
print(io.read(1000))--从当前位置读取1000个字符]]--[[
io.close()]]
--[[file=io.open("File_IO_DataTest_Mode_W.txt","a") --打开文件
print(file:read())
file:write("sccccccccccccccad\n")]]
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