问题
单项选择题
There are two character strings:s and t.s="My favor is computer",t=substr(s,9,5).Then the result after operation is( )。
A.S="My favor is computer"; t="compu";
B.S="My favor is computer"; t="is co";
C.S="My favor"; t="is co";
D. S="My favor"; t="is computer";
答案
参考答案:B