小班出题之字符串基础检测

可以扫描以下二维码或点击下方题目找到本题洛谷地址：

]HD"j\Q=MHLXh>=:FS
]HD"j\Q=MF: S
]HD"j\Q=MXh>HDJS

\XHDJnD:F=X :"=nXhQk

F: M"E:>T"E:>SnaH:DF:k
F: M"E:>T"E:>SnxH:LQ\Hkn

Xh>HDJn:TaT"k
HDhn"HXE\b k

HDhnF:HDfv
C
wL>fHDhnHb kHnMn: j=DJhEfvknHyyv
C
HwfaH:DF: "L\Dhf:*H+v##xH:LQ\H "L\Dhfa*H+vv
C
HwfaH:DF:*:*H++&ba*H+##xH:LQ\H*a*H++&b:*H+v
C
"L\hMMiZ:Hj=Qik
>=h\>Dn k
d
d
=jX=
C
"HXE\yyk
aH:DF:*:*H++ba*H+k
xH:LQ\H*a*H++b:*H+k
d
d
mEHj=fJ=hjHD=f"HDT"vvC
wL>fHDhnHb kHMb" j=DJhEfvkHyyv
C
"*H+baH:DF:*"*H++k
d
dn
"L\hMM"k
>=h\>Dn k
dn