Question

bat里判断变量包含某个字符串

有一个2.txt，如下

2060010111111111111a
2016010211111111111b
2016010311111111111ca
2016010411111111111d
我写了个bat，如下
@echo off
setlocal enabledelayedexpansion
cd.>2.txt
set str=
for /f %%i in (1.txt) do (
set "str=%%i"
if "%str:ca=%"==!str! (echo 1) else echo 2
)
结果输出的都是2，求高手指导

Answer 1

@echo off set "变量1=abcdefghijklmnopq" set 返回代码= echo %变量1%|findstr /c:"abc">nul 2>nul&&set 返回代码=true||set 返回代码=false

追问

把变量1=%%i就判断不正确了