从多个值创建字符串

var str1 = "Hello";
var str2 = "World";
var result = str1 + " " + str2;
console.log(result); // 输出：Hello World

str1 = "Hello"
str2 = "World"
result = str1 + " " + str2
print(result) # 输出：Hello World

#include <stdio.h>
int main() {
    char str1[] = "Hello";
    char str2[] = "World";
    printf("%s %s\n", str1, str2); // 输出：Hello World
    return 0;
}

str1 = "Hello"
str2 = "World"
result = "{} {}".format(str1, str2)
print(result) # 输出：Hello World