View Compilation Error

1_277_1915_23552.c
1_277_1915_23552.c(2) : error C2061: 语法错误 : 标识符“main”
1_277_1915_23552.c(2) : error C2059: 语法错误 : “;”
1_277_1915_23552.c(2) : error C2059: 语法错误 : “)”
1_277_1915_23552.c(15) : error C2065: “ni” : 未声明的标识符
1_277_1915_23552.c(17) : error C2065: “n2” : 未声明的标识符
1_277_1915_23552.c(18) : error C2065: “n3” : 未声明的标识符
1_277_1915_23552.c(19) : error C2065: “n4” : 未声明的标识符
1_277_1915_23552.c(23) : error C2059: 语法错误 : “=”
1_277_1915_23552.c(33) : error C2059: 语法错误 : “}”