![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
将两个字符串 s1 和 s2 连接起来 , 正确的函数为 ____________ 。
A.
p.p1%2520%257Bmargin%253A%25200.0px%25200.0px%25200.0px%25200.0px%253B%2520font%253A%252010.0px%2520Arial%253B%2520color%253A%2520%2523000000%253B%2520-webkit-text-stroke%253A%2520%2523000000%257D%250Aspan.s1%2520%257Bfont-kerning%253A%2520none%257D strcpy( s1,s2)
B.
p.p1%2520%257Bmargin%253A%25200.0px%25200.0px%25200.0px%25200.0px%253B%2520font%253A%252010.0px%2520Arial%253B%2520color%253A%2520%2523000000%253B%2520-webkit-text-stroke%253A%2520%2523000000%257D%250Aspan.s1%2520%257Bfont-kerning%253A%2520none%257D strcat (s1,s2)
C.
p.p1%2520%257Bmargin%253A%25200.0px%25200.0px%25200.0px%25200.0px%253B%2520font%253A%252010.0px%2520Arial%253B%2520color%253A%2520%2523000000%253B%2520-webkit-text-stroke%253A%2520%2523000000%257D%250Aspan.s1%2520%257Bfont-kerning%253A%2520none%257D strcmp (s1,s2)
D.
p.p1%2520%257Bmargin%253A%25200.0px%25200.0px%25200.0px%25200.0px%253B%2520font%253A%252010.0px%2520Arial%253B%2520color%253A%2520%2523000000%253B%2520-webkit-text-stroke%253A%2520%2523000000%257D%250Aspan.s1%2520%257Bfont-kerning%253A%2520none%257D strlen (s1,s2)