教训啊!!!# EB23 - 劳工卡
K*i
1 楼
要求bug free
字符串只包含大小写字母和空格,空格是分隔符
以下返回0
NULL
"" // 长度为0的空串
" "
以下返回5
"This is an apple"
" This is an apple"
"This is an apple "
" This is an apple "
"apple"
" apple "
" apple"
"apple "
字符串只包含大小写字母和空格,空格是分隔符
以下返回0
NULL
"" // 长度为0的空串
" "
以下返回5
"This is an apple"
" This is an apple"
"This is an apple "
" This is an apple "
"apple"
" apple "
" apple"
"apple "