Lua按指定字符分隔字符串的3种方法

1.

function split( str,reps )
local resultStrList = {}
string.gsub(str,'[^'..reps..']+',function ( w )
table.insert(resultStrList,w)
end)
return resultStrList
end

string库的gsub函数，共三个参数：

1. str是待分割的字符串

2.

'[^'..reps..']+'

是正则表达式，查找非reps字符，并且多次匹配

3. 每次分割完的字符串都能通过回调函数获取到，w参数就是分割后的一个子字符串，把它保存到一个table中

2.

function string.split(input, delimiter)
input = tostring(input)
delimiter = tostring(delimiter)
if (delimiter=='') then return false end
local pos,arr = 0, {}
for st,sp in function() return string.find(input, delimiter, pos, true) end do
table.insert(arr, string.sub(input, pos, st - 1))
pos = sp + 1
end
table.insert(arr, string.sub(input, pos))
return arr
end

3.

function getSplitStr(logStr,breakpointsStr,t)
local i = 0
local j = 1
local z = string.len(breakpointsStr)
while true do
i = string.find(logStr, breakpointsStr, i + 1)  -- 查找下一行
if i == nil then
table.insert(t, string.sub(logStr,j,-1))
break
end
table.insert(t, string.sub(logStr,j,i - 1))
j = i + z
end
return t
end