View Compilation Error

0_0_16917923_23237.c
0_0_16917923_23237.c(3) : error C2061: 语法错误: 标识符“namespace”
0_0_16917923_23237.c(3) : error C2059: 语法错误:“;”
0_0_16917923_23237.c(11) : error C2059: 语法错误:“}”
0_0_16917923_23237.c(13) : error C2198: “gets_s”: 用于调用的参数太少
0_0_16917923_23237.c(15) : error C2198: “gets_s”: 用于调用的参数太少