lua 字符串切分示例

local requrl = "/10.20.144.127:8891/cas/login"
local cutstr = string.sub(requrl,2)
print(cutstr)
local cutpos = string.find(cutstr,"/")
local addr = string.sub(cutstr,1,cutpos-1)
local realurl = string.sub(cutstr,cutpos)
print(cutpos)
print(addr)
print(realurl)

打印结果如下：

10.20.144.127:8891/cas/login
19
10.20.144.127:8891
/cas/login