如果不想自已写函数.可以这样玩
C语言版本
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char str[100]; // could be less but i'm too lazy to look for the actual the max length of an integer snprintf(str, sizeof(str), "%d", 0x77); snprintf(str, sizeof(str), "0x77 was %d !", 0x77); |
C++版本
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#include <string> std::string s = std::to_string(42); // 需要C++11支持 |
QT版本
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QString str; str.sprintf("0x2F:%2x!\n",0x2F); |