View Compilation Error

642260_0_0_8288.cpp
642260_0_0_8288.cpp(2) : error C2143: 语法错误 : 缺少“;”(在“namespace”的前面)
642260_0_0_8288.cpp(2) : error C2501: “uding” : 缺少存储类或类型说明符
642260_0_0_8288.cpp(2) : error C2059: 语法错误 : “;”
642260_0_0_8288.cpp(6) : error C2065: “cin” : 未声明的标识符
642260_0_0_8288.cpp(6) : fatal error C1903: 无法从以前的错误中恢复；正在停止编译