RT，返回的东西：

No valid executable file was produced by the compiler ./ccPpnhIc.o: in function __static_initialization_and_destruction_0(int, int)': src:(.text+0x2fe): relocation truncated to fit: R_X86_64_PC32 against .bss' src:(.text+0x311): relocation truncated to fit: R_X86_64_PC32 against `.bss' collect2: 错误：ld 返回 1